APA (7th ed.) Citation

Bickel, W., Bickel, O., & Weiss, B. (1950). Kraichgauer Bickel-Buch. Adam.

Chicago Style (17th ed.) Citation

Bickel, Willy, Otto Bickel, and Bernhard Weiss. Kraichgauer Bickel-Buch. Rinklingen-Bretten: Adam, 1950.

MLA (8th ed.) Citation

Bickel, Willy, et al. Kraichgauer Bickel-Buch. Adam, 1950.