Tyerman, C. (2017). How to plan a crusade: Religious war in the high middle ages (First Pegasus Books hardcover edition.). Pegasus Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTyerman, Christopher. How to Plan a Crusade: Religious War in the High Middle Ages. First Pegasus Books hardcover edition. New York: Pegasus Books, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTyerman, Christopher. How to Plan a Crusade: Religious War in the High Middle Ages. First Pegasus Books hardcover edition. Pegasus Books, 2017.
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