APA-referens (7:e uppl.)
Gregory, P. R. (2009). Terror by quota: State security from Lenin to Stalin : (an archival study). Yale University Press.
Chicago-referens (17:e uppl.)
Gregory, Paul R. Terror by Quota: State Security from Lenin to Stalin : (an Archival Study). New Haven: Yale University Press, 2009.
MLA-referens (9:e uppl.)
Gregory, Paul R. Terror by Quota: State Security from Lenin to Stalin : (an Archival Study). Yale University Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.