Dyfyniad APA

Grady, W. P., Murphy, D., Brady, J. A., McFarland, T., & Griffin, M. I. J. Invitation, From: Cardinal Gibbons I.C.B.U. Society, [n.d.].

Dyfyniad Arddull Chicago

Grady, William P., Daniel Murphy, James A. Brady, Thomas McFarland, and Martin I. J. Griffin. Invitation, From: Cardinal Gibbons I.C.B.U. Society, [n.d.].

Dyfyniad MLA

Grady, William P., et al. Invitation, From: Cardinal Gibbons I.C.B.U. Society, [n.d.].

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