Polk, C., & Roukin, S. (2018). Witchmark: Kingston cycle series, book 1 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPolk, C.L, और Samuel Roukin. Witchmark: Kingston Cycle Series, Book 1. Unabridged. Prince Frederick: Recorded Books Inc., 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPolk, C.L, और Samuel Roukin. Witchmark: Kingston Cycle Series, Book 1. Unabridged. Recorded Books Inc., 2018.
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