APA (7 वां संस्करण) प्रशस्ति पत्र
Watkins, D. (1976). Good photography made easy. David and Charles.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Watkins, Derek. Good Photography Made Easy. Newton Abbot ; North Pomfret, Vt.: David and Charles, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Watkins, Derek. Good Photography Made Easy. David and Charles, 1976.
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