Cita APA

Robinson, I. S. 1. (1990). The Papacy 1073-1198: Continuity and innovation. Cambridge [etc.]: Cambridge University Press.

Citación estilo Chicago

Robinson, I. S. 1947-. The Papacy 1073-1198: Continuity and Innovation. Cambridge [etc.]: Cambridge University Press, 1990.

Cita MLA

Robinson, I. S. 1947-. The Papacy 1073-1198: Continuity and Innovation. Cambridge [etc.]: Cambridge University Press, 1990.