Griffin, W. E. B., Butterworth, W. E., & Cendese, A. (2016). Curtain of death: A clandestine operations novel (Unabridged.). Brilliance Audio, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGriffin, W. E. B., William E. Butterworth, और Alexander Cendese. Curtain of Death: A Clandestine Operations Novel. Unabridged. Grand Haven, MI: Brilliance Audio, Inc., 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGriffin, W. E. B., et al. Curtain of Death: A Clandestine Operations Novel. Unabridged. Brilliance Audio, Inc., 2016.
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