APA (7e ed.) Bronvermelding

Philadelphia, A. C. H. S. o. Certificate of Membership, American Catholic Historical Society of Philadelphia, [n.d.].

Chicago (17e ed.) Bronvermelding

Philadelphia, American Catholic Historical Society of. Certificate of Membership, American Catholic Historical Society of Philadelphia, [n.d.].

MLA (8e ed.) Bronvermelding

Philadelphia, American Catholic Historical Society of. Certificate of Membership, American Catholic Historical Society of Philadelphia, [n.d.].

Let op: Deze citaties zijn niet altijd 100% accuraat.