APA (7th ed.) Citation

Geest, H. v. d., & Herter, H. E. (2006). Bergfreunde. [Eigenverlag Geest].

Chicago Style (17th ed.) Citation

Geest, Hans van der, and Hans Elias Herter. Bergfreunde. Zürich: [Eigenverlag Geest], 2006.

MLA (8th ed.) Citation

Geest, Hans van der, and Hans Elias Herter. Bergfreunde. [Eigenverlag Geest], 2006.