Cita APA (7th ed.)

Burchfield, J., Jacobs, M., & Kokrda, K. (1997). Photography in focus (Fifth edition.). NTC Pub. Group.

Cita Chicago (17th ed.)

Burchfield, Jerry, Mark Jacobs, i Ken Kokrda. Photography in Focus. Fifth edition. Lincolnwood, Ill.: NTC Pub. Group, 1997.

Cita MLA (8th ed.)

Burchfield, Jerry, et al. Photography in Focus. Fifth edition. NTC Pub. Group, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.