APA (7th ed.) Citation

Ratzel, F. Anthropogeographie. Wiss. Buchges.

Chicago Style (17th ed.) Citation

Ratzel, Friedrich. Anthropogeographie. Darmstadt: Wiss. Buchges.

MLA (9th ed.) Citation

Ratzel, Friedrich. Anthropogeographie. Wiss. Buchges.

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