Richard, J., & Shirley, J. (1979). The Latin kingdom of Jerusalem. North-Holland.
Chicago Style (17th ed.) CitationRichard, Jean, and Janet Shirley. The Latin Kingdom of Jerusalem. Amsterdam [etc.]: North-Holland, 1979.
MLA (9th ed.) CitationRichard, Jean, and Janet Shirley. The Latin Kingdom of Jerusalem. North-Holland, 1979.
Warning: These citations may not always be 100% accurate.