APA (7th ed.) Citation

Croy, O. (1978). Porträt-Fotografie.

Chicago Style (17th ed.) Citation

Croy, Otto. Porträt-Fotografie. 1978.

MLA (9th ed.) Citation

Croy, Otto. Porträt-Fotografie. 1978.

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