Ryan, C. (1994). The longest day: June 6, 1944 (1st Touchstone ed.). Simon and Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRyan, Cornelius. The Longest Day: June 6, 1944. 1st Touchstone ed. New York: Simon and Schuster, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRyan, Cornelius. The Longest Day: June 6, 1944. 1st Touchstone ed. Simon and Schuster, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.