Wills, C. (1980). History of photography: Techniques and equipment. New York: Hamlyn.
शिकागो स्टाइल उद्धरणWills, Camfield. History of Photography: Techniques and Equipment. New York: Hamlyn, 1980.
एमएलए उद्धरणWills, Camfield. History of Photography: Techniques and Equipment. New York: Hamlyn, 1980.
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