APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Viola, Lynne. The Unknown Gulag: The Lost World of Stalin's Special Settlements. Oxford ; New York, NY [u.a.]: Oxford Univ. Press, 2007.

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.