APA (7th ed.) Citation

Stepan, P., & Billeter, E. (1999). Icons of photography: The 20th century. Prestel.

Chicago Style (17th ed.) Citation

Stepan, Peter, and Erika Billeter. Icons of Photography: The 20th Century. Munich ; London ; New York: Prestel, 1999.

MLA (9th ed.) Citation

Stepan, Peter, and Erika Billeter. Icons of Photography: The 20th Century. Prestel, 1999.