Shaffer, D. R. (1989). Developmental psychology: Childhood and adolescence (2nd ed.). Brooks/Cole.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रShaffer, David R. Developmental Psychology: Childhood and Adolescence. 2nd ed. Pacific Grove, Calif.: Brooks/Cole, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रShaffer, David R. Developmental Psychology: Childhood and Adolescence. 2nd ed. Brooks/Cole, 1989.
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