APA (7th ed.) Citation

Sanders, J., & Sanders, H. (1961). Harms-Arbeitsmappen - Erdkunde. Atlantik-Verl. List.

Chicago Style (17th ed.) Citation

Sanders, Johann, and Helmut Sanders. Harms-Arbeitsmappen - Erdkunde. Frankfurt [u.a.]: Atlantik-Verl. List, 1961.

MLA (9th ed.) Citation

Sanders, Johann, and Helmut Sanders. Harms-Arbeitsmappen - Erdkunde. Atlantik-Verl. List, 1961.