APA (7th ed.) Citation

Jettmar, R., & Doetsch-Benziger, R. (1939). Ex Libris Richard Doetsch Benziger.

Chicago Style (17th ed.) Citation

Jettmar, Rudolf, and Richard Doetsch-Benziger. Ex Libris Richard Doetsch Benziger. 1939.

MLA (9th ed.) Citation

Jettmar, Rudolf, and Richard Doetsch-Benziger. Ex Libris Richard Doetsch Benziger. 1939.

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