APA Citation

Protzman, F. (2006). Work: The world in photographs. Washington, DC: National Geographic Society.

Chicago Style Citation

Protzman, Ferdinand. Work: The World in Photographs. Washington, DC: National Geographic Society, 2006.

MLA Citation

Protzman, Ferdinand. Work: The World in Photographs. Washington, DC: National Geographic Society, 2006.

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