APA (7th ed.) Citation

Coulton, G. G., Salimbene, d. P., & Peters, E. (1972). From St. Francis to Dante (2d ed., rev. and enl.). University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Coulton, G. G., da Parma Salimbene, and Edward Peters. From St. Francis to Dante. 2d ed., rev. and enl. Philadelphia: University of Pennsylvania Press, 1972.

MLA (8th ed.) Citation

Coulton, G. G., et al. From St. Francis to Dante. 2d ed., rev. and enl. University of Pennsylvania Press, 1972.