APA (7th ed.) Citation

Urbano IV, P. c., Gregorio X, P., Clemente IV, P., & Tautu, A. L. (1953). Acta Urbani IV, Clementis IV, Gregorii X: (1261-1297). Typis Polyglottis Vaticanis.

Chicago Style (17th ed.) Citation

Urbano IV, Papa ca., Papa Gregorio X, Papa Clemente IV, and Aloysius L. Tautu. Acta Urbani IV, Clementis IV, Gregorii X: (1261-1297). [Città del Vaticano]: Typis Polyglottis Vaticanis, 1953.

MLA (9th ed.) Citation

Urbano IV, Papa ca., et al. Acta Urbani IV, Clementis IV, Gregorii X: (1261-1297). Typis Polyglottis Vaticanis, 1953.