Cita APA

Somerville, R. 1. (1982). Scotia pontificia: Papal letters to Scotland before the pontificate of Innocent III. Oxford: Clarendon Press.

Citación estilo Chicago

Somerville, Robert 1940-. Scotia Pontificia: Papal Letters to Scotland Before the Pontificate of Innocent III. Oxford: Clarendon Press, 1982.

Cita MLA

Somerville, Robert 1940-. Scotia Pontificia: Papal Letters to Scotland Before the Pontificate of Innocent III. Oxford: Clarendon Press, 1982.