Cita APA (7a ed.)

Wilson, A. (1972). The marketing of professional services. Mcgraw hill.

Cita Chicago Style (17a ed.)

Wilson, Aubrey. The Marketing of Professional Services. London: Mcgraw hill, 1972.

Cita MLA (9a ed.)

Wilson, Aubrey. The Marketing of Professional Services. Mcgraw hill, 1972.