woodruffe, H. (1997). Services marketing. Macmillan.
Cita Chicago (17th ed.)woodruffe, Helen. Services Marketing. Delhi: Macmillan, 1997.
Cita MLA (9th ed.)woodruffe, Helen. Services Marketing. Macmillan, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.