Cita APA (7th ed.)
Johnson, W. R. (2009). Thwarting enemies at home and abroad: How to be a counterintelligence officer. Georgetown University Press.
Cita Chicago (17th ed.)
Johnson, William R. Thwarting Enemies at Home and Abroad: How to Be a Counterintelligence Officer. Washington, D.C.: Georgetown University Press, 2009.
Cita MLA (9th ed.)
Johnson, William R. Thwarting Enemies at Home and Abroad: How to Be a Counterintelligence Officer. Georgetown University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.