APA aipamena

Philadelphia, A. C. H. S. o. (1920). Invitation, Presentation of Laetare Medal, May 5, 1920.

Chicago Style aipamena

Philadelphia, American Catholic Historical Society of. Invitation, Presentation of Laetare Medal, May 5, 1920. 1920.

MLA aipamena

Philadelphia, American Catholic Historical Society of. Invitation, Presentation of Laetare Medal, May 5, 1920. 1920.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.