Cita APA (7th ed.)

Jacobs, M. (1990). Photography in focus (4th ed.). NTC National Textbook.

Cita Chicago (17th ed.)

Jacobs, Mark. Photography in Focus. 4th ed. Lincolnwood, Ill: NTC National Textbook, 1990.

Cita MLA (9th ed.)

Jacobs, Mark. Photography in Focus. 4th ed. NTC National Textbook, 1990.