APA (7th ed.) Citation

Houten, S. v. (1994). Natureboys: Photos / by Stephan van Houten. Janssen.

Chicago Style (17th ed.) Citation

Houten, Stephan van. Natureboys: Photos / by Stephan Van Houten. Berlin: Janssen, 1994.

MLA (8th ed.) Citation

Houten, Stephan van. Natureboys: Photos / by Stephan Van Houten. Janssen, 1994.

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