APA (7th ed.) Citation

Friedman, P., & O'Brien, J. A. (1957). Their brothers' keepers: The Christian heroes and heroines who helped the oppressed escape the Nazi terror. Crown.

Chicago Style (17th ed.) Citation

Friedman, Philip, and John A. O'Brien. Their Brothers' Keepers: The Christian Heroes and Heroines Who Helped the Oppressed Escape the Nazi Terror. New York, N.Y: Crown, 1957.

MLA (8th ed.) Citation

Friedman, Philip, and John A. O'Brien. Their Brothers' Keepers: The Christian Heroes and Heroines Who Helped the Oppressed Escape the Nazi Terror. Crown, 1957.