APA (7th ed.) Citation

Feil, O., & Kotrbova, J. (1960). Ex Libris Jana Kotrbova.

Chicago Style (17th ed.) Citation

Feil, Otto, and Jana Kotrbova. Ex Libris Jana Kotrbova. [S. l, 1960.

MLA (9th ed.) Citation

Feil, Otto, and Jana Kotrbova. Ex Libris Jana Kotrbova. 1960.

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