APA (7th ed.) Citation

Feil, O., & Beck, F. (1960). Ex Bibliotheca Franz Beck.

Chicago Style (17th ed.) Citation

Feil, Otto, and Franz Beck. Ex Bibliotheca Franz Beck. [S.l, 1960.

MLA (9th ed.) Citation

Feil, Otto, and Franz Beck. Ex Bibliotheca Franz Beck. 1960.

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