APA (7th ed.) Citation

Schumacher, W., & Lierke, E. (1927). Zur Rebendüngung.

Chicago Style (17th ed.) Citation

Schumacher, W., and E. Lierke. Zur Rebendüngung. 1927.

MLA (9th ed.) Citation

Schumacher, W., and E. Lierke. Zur Rebendüngung. 1927.

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