Hoffmann, L. (1988). Developmental psychology today (5th. ed.). Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHoffmann, Lois. Developmental Psychology Today. 5th. ed. San Diego: Random House, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHoffmann, Lois. Developmental Psychology Today. 5th. ed. Random House, 1988.
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