APA (7th ed.) Citation

Baumann, E., & Klier, K. (1971). Bodenfruchtbarkeit.

Chicago Style (17th ed.) Citation

Baumann, E., and Karl Klier. Bodenfruchtbarkeit. 1971.

MLA (8th ed.) Citation

Baumann, E., and Karl Klier. Bodenfruchtbarkeit. 1971.

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