Jacobs, M., & Kokrada, K. (1985). Photography in focus: A basic text (New 3rd ed.). NTC National Textbook.
Lua i Stíl Chicago (17ú heag.)Jacobs, Mark, agus Ken Kokrada. Photography in Focus: A Basic Text. New 3rd ed. Lincolnwood, Ill: NTC National Textbook, 1985.
Lua MLA (9ú heag.)Jacobs, Mark, agus Ken Kokrada. Photography in Focus: A Basic Text. New 3rd ed. NTC National Textbook, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.