Não informado. (1979). Darkroom photography. Photography Instructors Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Darkroom Photography. Beverly Hills, Calif: Photography Instructors Association, 1979.
MLA-Zitierstil (8. Ausg.)Não informado. Darkroom Photography. Photography Instructors Association, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.