APA (7th ed.) Citation
Duggan, A. L. (1963). The story of the Crusades, 1097-1291: With drawings. Pantheon Books.
Chicago Style (17th ed.) Citation
Duggan, Alfred Leo. The Story of the Crusades, 1097-1291: With Drawings. New York: Pantheon Books, 1963.
MLA (9th ed.) Citation
Duggan, Alfred Leo. The Story of the Crusades, 1097-1291: With Drawings. Pantheon Books, 1963.
Warning: These citations may not always be 100% accurate.