APA (7th ed.) Citation

O'Brien, J. A. (1959). Crusade for souls: How you can help (Fourth edition.). Our Sunday Visitor Press.

Chicago Style (17th ed.) Citation

O'Brien, John A. Crusade for Souls: How You Can Help. Fourth edition. Huntington, Ind.: Our Sunday Visitor Press, 1959.

MLA (8th ed.) Citation

O'Brien, John A. Crusade for Souls: How You Can Help. Fourth edition. Our Sunday Visitor Press, 1959.