Keene, C., & Morris, C. (2010). The case of the sneaky snowman (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKeene, Carolyn, और Cassandra Morris. The Case of the Sneaky Snowman. Unabridged. Prince Frederick: Recorded Books Inc., 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKeene, Carolyn, और Cassandra Morris. The Case of the Sneaky Snowman. Unabridged. Recorded Books Inc., 2010.
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