APA (7th ed.) Citation

Croy, O. (1942). Das Contax-Buch. Heering.

Chicago Style (17th ed.) Citation

Croy, Otto. Das Contax-Buch. Harzburg: Heering, 1942.

MLA (9th ed.) Citation

Croy, Otto. Das Contax-Buch. Heering, 1942.

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