Langan, J. Justice after war and the international common good: John Langan. The price of peace : just war in the twenty-first century.(2007).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLangan, John. "Justice After War and the International Common Good: John Langan." The Price of Peace : Just War in the Twenty-first Century.(2007) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रLangan, John. "Justice After War and the International Common Good: John Langan." The Price of Peace : Just War in the Twenty-first Century.(2007), .
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