Disher, G., & De Carvalho, D. (2007). Chain of evidence: Hal challis investigation series, book 4 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDisher, Garry, और Drew De Carvalho. Chain of Evidence: Hal Challis Investigation Series, Book 4. Unabridged. Prince Frederick: Recorded Books Inc., 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDisher, Garry, और Drew De Carvalho. Chain of Evidence: Hal Challis Investigation Series, Book 4. Unabridged. Recorded Books Inc., 2007.
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