Geller, M. A. (1952). Advertising at the crossroads. Ronald Press.
Cita Chicago (17th ed.)Geller, Max A. Advertising at the Crossroads. New York: Ronald Press, 1952.
Cita MLA (9th ed.)Geller, Max A. Advertising at the Crossroads. Ronald Press, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.