Orr, C. A. (1952). Stalin's slave camps: An indictment of modern slavery. Beacon.
Cita Chicago Style (17a ed.)Orr, Charles Andrew. Stalin's Slave Camps: An Indictment of Modern Slavery. Boston: Beacon, 1952.
Cita MLA (9a ed.)Orr, Charles Andrew. Stalin's Slave Camps: An Indictment of Modern Slavery. Beacon, 1952.
Precaución: Estas citas no son 100% exactas.