Pfeffer, W., & Bleck, L. (2010). The longest day: Celebrating the summer solstice. Dutton Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPfeffer, Wendy, और Linda Bleck. The Longest Day: Celebrating the Summer Solstice. New York: Dutton Children's Books, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPfeffer, Wendy, और Linda Bleck. The Longest Day: Celebrating the Summer Solstice. Dutton Children's Books, 2010.
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