APA (7th ed.) Citation

Feil, O., & Winkeler, S. (1958). Ex Libris Simone Winkeler.

Chicago Style (17th ed.) Citation

Feil, Otto, and Simone Winkeler. Ex Libris Simone Winkeler. [S. l, 1958.

MLA (9th ed.) Citation

Feil, Otto, and Simone Winkeler. Ex Libris Simone Winkeler. 1958.

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