APA (7 वां संस्करण) प्रशस्ति पत्र

O'Callaghan, J. F. (2004). Reconquest and crusade in medieval Spain (1st pbk. ed.). University of Pennsylvania Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

O'Callaghan, Joseph F. Reconquest and Crusade in Medieval Spain. 1st pbk. ed. Philadelphia [Pa.]: University of Pennsylvania Press, 2004.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

O'Callaghan, Joseph F. Reconquest and Crusade in Medieval Spain. 1st pbk. ed. University of Pennsylvania Press, 2004.

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