APA (7th ed.) Citation

Harms, H. (1933). Cucurbitaceae americanae novae. Engelmann.

Chicago Style (17th ed.) Citation

Harms, Hermann. Cucurbitaceae Americanae Novae. Leipzig: Engelmann, 1933.

MLA (9th ed.) Citation

Harms, Hermann. Cucurbitaceae Americanae Novae. Engelmann, 1933.

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