Friedman, P., & O'Brien, J. A. (1978). Their brothers' keepers: [the Christian heroes and heroines who helped the oppressed escape the Nazi terror] / by Philip Friedman. Forew. by John A. O'Brien. Holocaust Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFriedman, Philip, और John A. O'Brien. Their Brothers' Keepers: [the Christian Heroes and Heroines Who Helped the Oppressed Escape the Nazi Terror] / by Philip Friedman. Forew. by John A. O'Brien. New York: Holocaust Library, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFriedman, Philip, और John A. O'Brien. Their Brothers' Keepers: [the Christian Heroes and Heroines Who Helped the Oppressed Escape the Nazi Terror] / by Philip Friedman. Forew. by John A. O'Brien. Holocaust Library, 1978.
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