Time-Life Books. (1987). Getting firm: Shaping and toning. Time-Life Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTime-Life Books. Getting Firm: Shaping and Toning. Alexandria, Virginia: Time-Life Books, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTime-Life Books. Getting Firm: Shaping and Toning. Time-Life Books, 1987.
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