Dyfyniad APA

Hayes, P. (1936). Pope Pius XI. National Council of Catholic Men.

Dyfyniad Arddull Chicago

Hayes, Patrick. Pope Pius XI. Washington, D.C.: National Council of Catholic Men, 1936.

Dyfyniad MLA

Hayes, Patrick. Pope Pius XI. National Council of Catholic Men, 1936.

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