Psychological Operations in Guerilla Warfare by Tayac n, http://www.fas.org/irp/cia/guerilla.htm 

1963 KUBARK manual, http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB27/01-01.htm

Human Resources Exploitation Manual 1983, http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB122/CIA%20Human%20Res%20Exploit%20A1-G11.pdf, http://americanempireproject.com/empiresworkshop/chapter3/DODHumanResourceExploitationTrainingManual1983.pdf