APA (7th ed.) Citation

Drude, O. (1977). Handbuch der Pflanzengeographie. Arno Press.

Chicago Style (17th ed.) Citation

Drude, Oscar. Handbuch Der Pflanzengeographie. New York: Arno Press, 1977.

MLA (9th ed.) Citation

Drude, Oscar. Handbuch Der Pflanzengeographie. Arno Press, 1977.

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