APA (7th ed.) Citation

Engler, A., & Krause, K. (1920). Additamentum ad Araceas - Philodendroideas: Araceae - Colocasioideae. Wilhelm Engelmann.

Chicago Style (17th ed.) Citation

Engler, A., and K. Krause. Additamentum Ad Araceas - Philodendroideas: Araceae - Colocasioideae. Leipzig: Wilhelm Engelmann, 1920.

MLA (8th ed.) Citation

Engler, A., and K. Krause. Additamentum Ad Araceas - Philodendroideas: Araceae - Colocasioideae. Wilhelm Engelmann, 1920.

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