APA (7th ed.) Citation

Viola, L. (2007). The unknown gulag: The lost world of Stalin's special settlements. Oxford University Press.

Chicago Style (17th ed.) Citation

Viola, Lynne. The Unknown Gulag: The Lost World of Stalin's Special Settlements. Oxford ; New York: Oxford University Press, 2007.

MLA (9th ed.) Citation

Viola, Lynne. The Unknown Gulag: The Lost World of Stalin's Special Settlements. Oxford University Press, 2007.