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  1. By: Needham, James G. (James George), - MacGillivray, Alexander Dyer, - Johannsen, O. A. (Oskar Augustus), - Davis, Kary Cadmus,
    Publication info: Albany, University of the state of New York, 1903
    Holding Institution: Cornell University Library
  2. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Albany, University of the State of New York, 1903
    Holding Institution: Smithsonian Libraries and Archives
  3. By: Needham, James G. (James George), - Morton, Kenneth J., - Johannsen, O. A. (Oskar Augustus), - Felt, Ephraim Porter,
    Publication info: Albany, New York State Education Dept, 1905
    Holding Institution: MBLWHOI Library
  4. By: Needham, James G. (James George), - Morton, Kenneth J., - Johannsen, O. A. (Oskar Augustus), - Felt, Ephraim Porter,
    Publication info: Albany, New York State Education Department, 1905
    Holding Institution: University of California Libraries
  5. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, [University of Maine], 1909-1912
    Holding Institution: Smithsonian Libraries and Archives
  6. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1909
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  7. By: Patch, Edith M. (Edith Marion), - Johannsen, O. A. (Oskar Augustus), - Maine Agricultural Experiment Station.
    Publication info: Orono, 1910
    Holding Institution: Library of Congress
    BHL Collections: Early Women in Science | Women in Natural History
  8. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1910
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  9. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1910
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  10. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  11. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  12. By: Johannsen, O. A. (Oskar Augustus), - Patch, Edith M. (Edith Marion),
    Publication info: Orono, Maine Agricultural Experiment Station, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Women in Natural History
  13. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1912
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  14. By: Johannsen, O. A. (Oskar Augustus),
    Publication info: Orono, Maine Agricultural Experiment Station, 1912
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  15. By: Johannsen, O. A. (Oskar Augustus), - Lloyd, J. T.
    Publication info: Ithaca, N.Y, Limnological Laboratory of the Dept. of Entomology in Cornell University, 1915
    Holding Institution: Smithsonian Libraries and Archives
  16. By: Riley, William A. (William Albert), - Johannsen, O. A. (Oskar Augustus), - Johanssen, Oskar Augustus,
    Publication info: Ithaca, N. Y, The Comstock Publishing Company, 1915
    Holding Institution: Multiple institutions
  17. By: Riley, William A. (William Albert), - Johannsen, O. A. (Oskar Augustus),
    Publication info: Ithaca, N.Y, Comstock Pub. Co, 1915
    Holding Institution: University of California Libraries
  18. By: Johannsen, O. A. (Oskar Augustus), - State Geological and Natural History Survey of Connecticut.
    Publication info: Hartford, Geological and Natural History Survey, 1911-
    Holding Institution: University of Toronto - Earth Sciences Library (Noranda)
    BHL Collections: Expanding Access to Biodiversity Literature
  19. By: Johannsen, O. A. (Oskar Augustus), - Butt, Ferdinand H. (Ferdinand Hinchley),
    Edition: 1st ed.
    Publication info: New York, McGraw-Hill Book Company, inc, 1941
    Holding Institution: MBLWHOI Library
  1. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Bulletin / New York State Museum
    Volume: 68
    Date: 1903
    Page Range: 328--441
    Publication Info: Albany New York State Education Dept
  2. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia
    Volume: 14
    Date: 1903
    Page Range: 14--17
    Publication Info: Philadelphia, [Entomological Rooms of the Academy of Natural Sciences],
  3. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 16
    Date: 1909
    Page Range: 1--4
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  4. By: Johannsen, O. A. (Oskar Augustus), - Crosby, Cyrus Richard,
    Type: Article
    In: Psyche
    Volume: 20
    Date: 1913
    Page Range: 164--166
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  5. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 21
    Date: 1914
    Page Range: 93--93
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  6. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Transactions of the American Entomological Society
    Volume: 42
    Date: 1916
    Page Range: 385--398
    Publication Info: Philadelphia, The Society at the Academy of Natural Sciences, 1890-
  7. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1921
    Page Range: 229--232
    Publication Info: Philadelphia, [Entomological Rooms of the Academy of Natural Sciences],
  8. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: The Journal of parasitology
    Volume: 7
    Issue: 3
    Date: 1921-03
    Page Range: 154--155
    Publication Info: Chicago [etc.],
  9. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 30
    Date: 1922
    Page Range: 141--153
    Publication Info: Lawrence, Kan Allen Press [etc.]
  10. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 30
    Date: 1923
    Page Range: 52--58
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  11. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 31
    Issue: 1
    Date: 1924
    Page Range: 45--46
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  12. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Entomological news
    Volume: 36
    Date: 1925
    Page Range: 266--267
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  13. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 34
    Date: 1926
    Page Range: 273--277
    Publication Info: Lawrence, Kan Allen Press [etc.]
  14. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 29
    Date: 1927
    Page Range: 205--208
    Publication Info: Washington, etc, Entomological Society of Washington,
  15. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 36
    Date: 1929
    Page Range: 123--124
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  16. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 42
    Date: 1934
    Page Range: 343--352
    Publication Info: Lawrence, Kan Allen Press [etc.]
  17. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Entomological news
    Volume: 54
    Date: 1943
    Page Range: 77--79
    Publication Info: [Philadelphia], American Entomological Society, 1925-
  18. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Psyche
    Volume: 54
    Date: 1947
    Page Range: 208--208
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  19. By: Johannsen, O. A. (Oskar Augustus),
    Type: Article
    In: Entomological news
    Volume: 58
    Date: 1947
    Page Range: 171--174
    Publication Info: [Philadelphia], American Entomological Society, 1925-