Cita APA (7a ed.)

Martyn, J. R. C. (2011). From queens to slaves: Pope Gregory's special concern for women. Cambridge Scholars Pub..

Cita Chicago Style (17a ed.)

Martyn, John R. C. From Queens to Slaves: Pope Gregory's Special Concern for Women. Newcastle Upon Tyne: Cambridge Scholars Pub., 2011.

Cita MLA (8a ed.)

Martyn, John R. C. From Queens to Slaves: Pope Gregory's Special Concern for Women. Cambridge Scholars Pub., 2011.