Dyfyniad APA

Philadelphia, A. C. H. S. o. (1897). Advertisement, three lecture cards, American Catholic Historical Society, [1897?].

Dyfyniad Arddull Chicago

Philadelphia, American Catholic Historical Society of. Advertisement, Three Lecture Cards, American Catholic Historical Society, [1897?]. 1897.

Dyfyniad MLA

Philadelphia, American Catholic Historical Society of. Advertisement, Three Lecture Cards, American Catholic Historical Society, [1897?]. 1897.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.