Pfeffer, S. B. (2008). Life as we knew it.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPfeffer, Susan Beth. Life as We Knew It. 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPfeffer, Susan Beth. Life as We Knew It. 2008.
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