Burchfield, J., Jacobs, M., & Kokrda, K. (1997). Photography in focus (Fifth edition.). NTC Pub. Group.
Chicago Style aipamenaBurchfield, Jerry, Mark Jacobs, and Ken Kokrda. Photography in Focus. Fifth edition. Lincolnwood, Ill.: NTC Pub. Group, 1997.
MLA aipamenaBurchfield, Jerry, et al. Photography in Focus. Fifth edition. NTC Pub. Group, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.