Cita APA (7th ed.)

Walsh, T. J. (1973). Protecting your business against espionage. AMACOM.

Cita Chicago (17th ed.)

Walsh, Timothy J. Protecting Your Business Against Espionage. New York: AMACOM, 1973.

Cita MLA (9th ed.)

Walsh, Timothy J. Protecting Your Business Against Espionage. AMACOM, 1973.