APA (7th ed.) Citation

Blackstock, P. W., & Schaf, F. L. (1978). Intelligence, espionage, counterespionage, and covert operations: A guide to information sources. Gale Research Co..

Chicago Style (17th ed.) Citation

Blackstock, Paul W., and Frank L. Schaf. Intelligence, Espionage, Counterespionage, and Covert Operations: A Guide to Information Sources. Detroit: Gale Research Co., 1978.

MLA (9th ed.) Citation

Blackstock, Paul W., and Frank L. Schaf. Intelligence, Espionage, Counterespionage, and Covert Operations: A Guide to Information Sources. Gale Research Co., 1978.