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  1. By: Knight, Wilbur C. (Wilbur Clinton), - Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1898
    Holding Institution: American Museum of Natural History Library
  2. By: Earle, Charles, 1859- - Wortman, Jacob Lawson.
    Publication info: 1893
    Holding Institution: American Museum of Natural History Library
  3. By: Matthew, William Diller, 1871-1930. - Wortman, Jacob Lawson.
    Publication info: 1899
    Holding Institution: American Museum of Natural History Library
  4. By: Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1893
    Holding Institution: American Museum of Natural History Library
  5. By: Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1892
    Holding Institution: American Museum of Natural History Library
  6. By: Wortman, Jacob Lawson.
    Publication info: Philadelphia,1886
    Holding Institution: Cornell University Library
  7. By: Granger, Walter, - Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1898
    Holding Institution: American Museum of Natural History Library
  8. By: Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1898
    Holding Institution: American Museum of Natural History Library
  9. By: Wortman, Jacob Lawson.
    Publication info: 1898
    Holding Institution: American Museum of Natural History Library
  10. By: Hill, R. S. (Russell S.) - Van Valen, Leigh M. - Wortman, Jacob Lawson.
    Publication info: 1967
    Holding Institution: American Museum of Natural History Library
  11. By: Granger, Walter, - Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1899
    Holding Institution: American Museum of Natural History Library
  12. By: Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1894
    Holding Institution: American Museum of Natural History Library
  13. By: Earle, Charles, 1859- - Osborn, Henry Fairfield, - Peterson, Olof August, 1865-1933. - Raffierty, Thomas. - Wortman, Jacob Lawson.
    Publication info: 1895
    Holding Institution: American Museum of Natural History Library
  14. By: Osborn, Henry Fairfield, - Peterson, Olof August, 1865-1933. - Wortman, Jacob Lawson.
    Publication info: 1893
    Holding Institution: American Museum of Natural History Library
  15. By: Osborn, Henry Fairfield, - Wortman Expedition to the Rocky Mountains 1891) - Wortman, Jacob Lawson.
    Publication info: 1892
    Holding Institution: American Museum of Natural History Library
  16. By: Wortman, Jacob Lawson.
    Publication info: 1897
    Holding Institution: American Museum of Natural History Library
  17. By: Hills, R. C. (Richard Charles), 1848-1923. - Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1897
    Holding Institution: American Museum of Natural History Library
  18. By: Matthews, Washington, - Billings, John S. (John Shaw), - Wortman, Jacob Lawson.
    Publication info: Washington, D.C.,National Academy of Sciences,1893.
    Holding Institution: University of California Libraries (archive.org)
  19. By: Brown, Barnum. - Matthew, William Diller, 1871-1930. - Wortman, Jacob Lawson.
    Publication info: 1916
    Holding Institution: American Museum of Natural History Library
  20. By: Granger, Walter, - Simpson, George Gaylord, 1902- - Wortman, Jacob Lawson.
    Publication info: 1931
    Holding Institution: American Museum of Natural History Library
  21. By: Gidley, James Williams, 1866-1931. - Matthew, William Diller, 1871-1930. - Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1904
    Holding Institution: American Museum of Natural History Library
  22. By: Granger, Walter, - Gregory, William K. (William King), - Matthew, William Diller, 1871-1930. - Osborn, Henry Fairfield, - Peterson, Olof August, 1865-1933. - Wortman, Jacob Lawson.
    Publication info: 1908
    Holding Institution: American Museum of Natural History Library
  23. By: Leidy, Joseph, - Wortman, Jacob Lawson.
    Publication info: 1894
    Holding Institution: American Museum of Natural History Library
  24. By: Wortman, Jacob Lawson.
    Publication info: 1893
    Holding Institution: American Museum of Natural History Library
  25. By: Wortman, Jacob Lawson.
    Publication info: 1895
    Holding Institution: American Museum of Natural History Library
  26. By: Hay, Oliver Perry, - Wortman, Jacob Lawson.
    Publication info: 1905
    Holding Institution: American Museum of Natural History Library
  27. By: Wortman Expedition to the Rocky Mountains 1893) - Wortman, Jacob Lawson.
    Publication info: 1894
    Holding Institution: American Museum of Natural History Library
  28. By: Osborn, Henry Fairfield, - Wortman, Jacob Lawson.
    Publication info: 1900
    Holding Institution: American Museum of Natural History Library
  29. By: Osborn, Henry Fairfield, - Peterson, Olof August, 1865-1933. - Wortman, Jacob Lawson.
    Publication info: 1895
    Holding Institution: American Museum of Natural History Library
  30. By: Wortman, Jacob Lawson.
    Publication info: 1896
    Holding Institution: American Museum of Natural History Library
  31. By: Wortman, Jacob Lawson.
    Publication info: 1899
    Holding Institution: American Museum of Natural History Library
  32. By: Baldwin, David Dwight, 1831-1912. - Cope, E. D. (Edward Drinker), - Matthew, William Diller, 1871-1930. - Wortman, Jacob Lawson.
    Publication info: 1897
    Holding Institution: American Museum of Natural History Library
  33. By: Wortman, Jacob Lawson.
    Publication info: 1896
    Holding Institution: American Museum of Natural History Library
  34. By: Matthew, William Diller, 1871-1930. - Peterson, Olof August, 1865-1933. - Wortman, Jacob Lawson.
    Publication info: 1921
    Holding Institution: American Museum of Natural History Library