Cita APA (7th ed.)

Harlan, G., & Scott, A. (1955). Contemporary public relations: Principles and cases. Prentice-Hall.

Cita Chicago (17th ed.)

Harlan, Gene, i Alan Scott. Contemporary Public Relations: Principles and Cases. Englewood Cliffs, N. J: Prentice-Hall, 1955.

Cita MLA (9th ed.)

Harlan, Gene, i Alan Scott. Contemporary Public Relations: Principles and Cases. Prentice-Hall, 1955.