Flint, E., & Guidall, G. (2012). 1632: Ring of fire series, book 1 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFlint, Eric, और George Guidall. 1632: Ring of Fire Series, Book 1. Unabridged. Prince Frederick: Recorded Books Inc., 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFlint, Eric, और George Guidall. 1632: Ring of Fire Series, Book 1. Unabridged. Recorded Books Inc., 2012.
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