APA (7th ed.) Citation

Betz, F., & Blumer, P. (1972). Wir in unserer Welt. Benziger.

Chicago Style (17th ed.) Citation

Betz, Felicitas, and Peter Blumer. Wir in Unserer Welt. Köln: Benziger, 1972.

MLA (9th ed.) Citation

Betz, Felicitas, and Peter Blumer. Wir in Unserer Welt. Benziger, 1972.

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