Keppel, L. O. (1931). Crusading Europe. Catholic Truth Society.
Chicago Style (17th ed.) CitationKeppel, Leopoldina Olivia. Crusading Europe. London: Catholic Truth Society, 1931.
MLA (8th ed.) CitationKeppel, Leopoldina Olivia. Crusading Europe. Catholic Truth Society, 1931.
Warning: These citations may not always be 100% accurate.