APA (7 वां संस्करण) प्रशस्ति पत्र
Hellmuth, D. (2016). Counterterrorism and the state: Western responses to 9/11. University of Pennsylvania Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hellmuth, Dorle. Counterterrorism and the State: Western Responses to 9/11. Philadelphia, Pennsylvania: University of Pennsylvania Press, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hellmuth, Dorle. Counterterrorism and the State: Western Responses to 9/11. University of Pennsylvania Press, 2016.
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