APA (7 वां संस्करण) प्रशस्ति पत्र
Maddrell, P. (2006). Spying on science: Western intelligence in divided Germany, 1945-1961. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Maddrell, Paul. Spying on Science: Western Intelligence in Divided Germany, 1945-1961. Oxford ; New York: Oxford University Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Maddrell, Paul. Spying on Science: Western Intelligence in Divided Germany, 1945-1961. Oxford University Press, 2006.
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