APA (7th ed.) Citation

Sullivan, R. E., Lackner, B. K., & Philp, K. R. (1978). Essays on medieval civilization. University of Texas Press.

Chicago Style (17th ed.) Citation

Sullivan, Richard E., Bede K. Lackner, and Kenneth R. Philp. Essays on Medieval Civilization. Austin: University of Texas Press, 1978.

MLA (9th ed.) Citation

Sullivan, Richard E., et al. Essays on Medieval Civilization. University of Texas Press, 1978.