APA (7th ed.) Citation

Krause, K., & Engler, A. (1906). Aponogetonaceae. Wilhelm Engelmann.

Chicago Style (17th ed.) Citation

Krause, K., and A. Engler. Aponogetonaceae. Leipzig: Wilhelm Engelmann, 1906.

MLA (8th ed.) Citation

Krause, K., and A. Engler. Aponogetonaceae. Wilhelm Engelmann, 1906.

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