APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.