Coll, S. (2018). Directorate S: The C.I.A. and America's secret wars in Afghanistan and Pakistan. Penguin Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रColl, Steve. Directorate S: The C.I.A. and America's Secret Wars in Afghanistan and Pakistan. New York: Penguin Press, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रColl, Steve. Directorate S: The C.I.A. and America's Secret Wars in Afghanistan and Pakistan. Penguin Press, 2018.
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