APA (7th ed.) Citation

Huber, E., & Vetter, T. (1952). Ex Libris Dr. Theo Vetter.

Chicago Style (17th ed.) Citation

Huber, Ernest, and Théodore Vetter. Ex Libris Dr. Theo Vetter. [S. l, 1952.

MLA (9th ed.) Citation

Huber, Ernest, and Théodore Vetter. Ex Libris Dr. Theo Vetter. 1952.

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