Dyfyniad APA

Pax Christi USA Records. University of Notre Dame Archives.

Dyfyniad Arddull Chicago

Pax Christi USA Records. University of Notre Dame Archives.

Dyfyniad MLA

Pax Christi USA Records. University of Notre Dame Archives.

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