APA (7th ed.) Citation

Alexander, K. D., Mark, R., & Abel, J. F. (1977). The structural behavior of Medieval ribbed vaulting.

Chicago Style (17th ed.) Citation

Alexander, Kirk D., Robert Mark, and J. F. Abel. The Structural Behavior of Medieval Ribbed Vaulting. 1977.

MLA (9th ed.) Citation

Alexander, Kirk D., et al. The Structural Behavior of Medieval Ribbed Vaulting. 1977.