APA (7th ed.) Citation

Feil, O., & Feil, O. P. (1956). Zu Eigen Otto Peter Feil.

Chicago Style (17th ed.) Citation

Feil, Otto, and Otto Peter Feil. Zu Eigen Otto Peter Feil. [S. l, 1956.

MLA (9th ed.) Citation

Feil, Otto, and Otto Peter Feil. Zu Eigen Otto Peter Feil. 1956.

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