"Hudson, G. (1969). The hard and bitter peace: World politics since 1945. National academy publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Hudson, G.F". The Hard and Bitter Peace: World Politics Since 1945. National academy publishers, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Hudson, G.F". The Hard and Bitter Peace: World Politics Since 1945. National academy publishers, 1969.
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