APA (7th ed.) Citation

Pohl, H., Thelen, A., & Kleinertz, L. (1928). Bürgerkunde (31. - 40. Tsd.). DuMont-Schauberg.

Chicago Style (17th ed.) Citation

Pohl, Heinrich, Arn Thelen, and Ludwig Kleinertz. Bürgerkunde. 31. - 40. Tsd. Köln: DuMont-Schauberg, 1928.

MLA (9th ed.) Citation

Pohl, Heinrich, et al. Bürgerkunde. 31. - 40. Tsd. DuMont-Schauberg, 1928.

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