APA (7th ed.) Citation

Aschhoff, G., & Henningsen, E. (1986). The German cooperative system: Its history, structure and strength. Knapp.

Chicago Style (17th ed.) Citation

Aschhoff, Gunther, and Eckart Henningsen. The German Cooperative System: Its History, Structure and Strength. Frankfurt am Main: Knapp, 1986.

MLA (9th ed.) Citation

Aschhoff, Gunther, and Eckart Henningsen. The German Cooperative System: Its History, Structure and Strength. Knapp, 1986.