Hartley, E. (2006). Constantine the Great: York's Roman emperor. York Museums and Galleries Trust in association with Lund Humphries.
Cita Chicago Style (17a ed.)Hartley, Elizabeth. Constantine the Great: York's Roman Emperor. York: York Museums and Galleries Trust in association with Lund Humphries, 2006.
Cita MLA (9a ed.)Hartley, Elizabeth. Constantine the Great: York's Roman Emperor. York Museums and Galleries Trust in association with Lund Humphries, 2006.
Precaución: Estas citas no son 100% exactas.