Peters, E., & Prebble, S. (2014). The knocker on death's door: Inspector felse mysteries series, book 10 (Unabridged.). Recorded Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPeters, Ellis, और Simon Prebble. The Knocker on Death's Door: Inspector Felse Mysteries Series, Book 10. Unabridged. Prince Frederick: Recorded Books Inc., 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPeters, Ellis, और Simon Prebble. The Knocker on Death's Door: Inspector Felse Mysteries Series, Book 10. Unabridged. Recorded Books Inc., 2014.
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