APA (7th ed.) Citation

Howell-Koehler, N. (1980). Photo art processes. Davis Publications.

Chicago Style (17th ed.) Citation

Howell-Koehler, Nancy. Photo Art Processes. Worcester, Mass: Davis Publications, 1980.

MLA (9th ed.) Citation

Howell-Koehler, Nancy. Photo Art Processes. Davis Publications, 1980.

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