Johnstone, W. W., & Guidall, G. (2010). Sudden fury: Last gunfighter series, book 20 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnstone, William W., और George Guidall. Sudden Fury: Last Gunfighter Series, Book 20. Unabridged. Prince Frederick: Recorded Books Inc., 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रJohnstone, William W., और George Guidall. Sudden Fury: Last Gunfighter Series, Book 20. Unabridged. Recorded Books Inc., 2010.
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