Dyfyniad APA

O'Brien, J. A. (1943). Converts: How to win them. Our Sunday Visitor Press.

Dyfyniad Arddull Chicago

O'Brien, John A. Converts: How to Win Them. Huntington, Ind.: Our Sunday Visitor Press, 1943.

Dyfyniad MLA

O'Brien, John A. Converts: How to Win Them. Our Sunday Visitor Press, 1943.

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