APA (7th ed.) Citation

Winter, K., Bischoff, H., & Metzger, J. (1970). Kinderfreuden. Beltz.

Chicago Style (17th ed.) Citation

Winter, Klaus, Helmut Bischoff, and Juliane Metzger. Kinderfreuden. Weinheim: Beltz, 1970.

MLA (9th ed.) Citation

Winter, Klaus, et al. Kinderfreuden. Beltz, 1970.