APA (7th ed.) Citation

Sherff, E. E. (1936). Revision of the genus Coreopsis.

Chicago Style (17th ed.) Citation

Sherff, Earl Edward. Revision of the Genus Coreopsis. Chicago, U.S.A, 1936.

MLA (9th ed.) Citation

Sherff, Earl Edward. Revision of the Genus Coreopsis. 1936.

Warning: These citations may not always be 100% accurate.