Ryan-Herndon, L. L., Barrett Plunkett, L., Glenday, C., & Claxton, S. (2007). Guinness world records. Scholastic Reference.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRyan-Herndon, Lisa L., Laura Barrett Plunkett, Craig Glenday, और Stuart Claxton. Guinness World Records. New York: Scholastic Reference, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRyan-Herndon, Lisa L., et al. Guinness World Records. Scholastic Reference, 2007.
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