Sampon, R. G. (1958). Legislative activity of the provincial and plenary councils of the thirteenth century: A historical synopsis.
Chicago-referens (17:e uppl.)Sampon, Robert G. Legislative Activity of the Provincial and Plenary Councils of the Thirteenth Century: A Historical Synopsis. 1958.
MLA-referens (8:e uppl.)Sampon, Robert G. Legislative Activity of the Provincial and Plenary Councils of the Thirteenth Century: A Historical Synopsis. 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.