Cita APA (7a ed.)

Forsyth, P. (1992). Marketing professional services: A handbook. Pitman Publishing.

Cita Chicago Style (17a ed.)

Forsyth, Patrick. Marketing Professional Services: A Handbook. London: Pitman Publishing, 1992.

Cita MLA (9a ed.)

Forsyth, Patrick. Marketing Professional Services: A Handbook. Pitman Publishing, 1992.