APA (7th ed.) Citation

Sanders, J., & Sanders, H. (1965). Harms-Arbeitsmappe - Erdkunde. List.

Chicago Style (17th ed.) Citation

Sanders, Johann, and Helmut Sanders. Harms-Arbeitsmappe - Erdkunde. München Hamburg [u.a.]: List, 1965.

MLA (9th ed.) Citation

Sanders, Johann, and Helmut Sanders. Harms-Arbeitsmappe - Erdkunde. List, 1965.