Stephenson, H. (1960). Handbook of public relations. McGraw-Hill.
Cita Chicago (17th ed.)Stephenson, Howard. Handbook of Public Relations. New York: McGraw-Hill, 1960.
Cita MLA (9th ed.)Stephenson, Howard. Handbook of Public Relations. McGraw-Hill, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.