APA (7th ed.) Citation

Engler, A. (1920). Araceae - Aroideae: Araceae - Pistioideae. Wilhelm Engelmann.

Chicago Style (17th ed.) Citation

Engler, A. Araceae - Aroideae: Araceae - Pistioideae. Leipzig: Wilhelm Engelmann, 1920.

MLA (8th ed.) Citation

Engler, A. Araceae - Aroideae: Araceae - Pistioideae. Wilhelm Engelmann, 1920.

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