Cita APA (7a ed.)

Gardner, J. (2011). The Roman crucible: The artistic patronage of the Papacy : 1198-1304. Hirmer Verlag.

Cita Chicago Style (17a ed.)

Gardner, Julian. The Roman Crucible: The Artistic Patronage of the Papacy : 1198-1304. München: Hirmer Verlag, 2011.

Cita MLA (9a ed.)

Gardner, Julian. The Roman Crucible: The Artistic Patronage of the Papacy : 1198-1304. Hirmer Verlag, 2011.