Stubbs, L. (1999). Sonny's treasure hunt (1st U.S. ed.). Barron's Educational Series.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStubbs, Lisa. Sonny's Treasure Hunt. 1st U.S. ed. Hauppauge, NY: Barron's Educational Series, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStubbs, Lisa. Sonny's Treasure Hunt. 1st U.S. ed. Barron's Educational Series, 1999.
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