APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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