APA (7th ed.) Citation

Keck, D. D. (1957). Trends in systematic botany ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Keck, David D. Trends in Systematic Botany. [Sonderdr.]. 1957.

MLA (9th ed.) Citation

Keck, David D. Trends in Systematic Botany. [Sonderdr.]. 1957.

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