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  1. By: Riggs, Elmer S., - Farrington, Oliver C. (Oliver Cummings), - Field Columbian Museum.
    Publication info: Chicago :Field Columbian Museum ,1906.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Riggs, Elmer S., - Field Museum of Natural History. Department of Geology.
    Publication info: Chicago :Field Museum of Natural History,1932.
    Holding Institution: Field Museum of Natural History Library
  3. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum of Natural History,1937.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  4. By: Riggs, Elmer S., - Farrington, Oliver C. (Oliver Cummings),
    Publication info: Chicago :Field Columbian Museum,1899.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  5. By: Riggs, Elmer S., - Farrington, Oliver C. (Oliver Cummings), - Field Museum of Natural History.
    Publication info: Chicago :Field Museum of Natural History ,1912.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  6. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum of Natural History ,1933.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  7. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum of Natural History ,1942.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  8. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum of Natural History,1935.
    Holding Institution: University Library, University of Illinois Urbana Champaign
  9. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum Press ,1945
    Holding Institution: University Library, University of Illinois Urbana Champaign
  10. By: Riggs, Elmer S.,
    Publication info: Chicago :Field Museum of Natural History,1939.
    Holding Institution: University Library, University of Illinois Urbana Champaign