APA (7th ed.) Citation

Steffen, H. (1891). Die Düngungsfrage. Parey.

Chicago Style (17th ed.) Citation

Steffen, Hans. Die Düngungsfrage. Berlin: Parey, 1891.

MLA (9th ed.) Citation

Steffen, Hans. Die Düngungsfrage. Parey, 1891.

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