Blackstock & Schaf. (1978). Intelligence, espionage, counterespionage and covert operations. Gale Research Co.
Chicago Style (17th ed.) CitationBlackstock and Schaf. Intelligence, Espionage, Counterespionage and Covert Operations. Michigan: Gale Research Co, 1978.
MLA (8th ed.) CitationBlackstock and Schaf. Intelligence, Espionage, Counterespionage and Covert Operations. Gale Research Co, 1978.
Warning: These citations may not always be 100% accurate.