Raj , G., & Mehra , H. (1975). Photo Chemistry. Goel publishing house.
Chicago Edition CitationRaj , Gurdeep, i Harish Mehra. Photo Chemistry. Uttarpradesh: Goel publishing house, 1975.
Cita MLARaj , Gurdeep, i Harish Mehra. Photo Chemistry. Goel publishing house, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.