Style de citation APA (7e éd.)

Kohler, R. E. Subspecies classification and biological survey, 1850s-1930s: Robert E. Kohler. Spaces of classification.(2003).

Style de citation Chicago (17e éd.)

Kohler, Robert E. "Subspecies Classification and Biological Survey, 1850s-1930s: Robert E. Kohler." Spaces of Classification.(2003) .

Style de citation MLA (8e éd.)

Kohler, Robert E. "Subspecies Classification and Biological Survey, 1850s-1930s: Robert E. Kohler." Spaces of Classification.(2003), .

Attention : ces citations peuvent ne pas être correctes à 100%.