Payne, A. (1995). The essence of services marketing. Prentice hall of india.
Chicago Style aipamenaPayne, Adrian. The Essence of Services Marketing. New delhi: Prentice hall of india, 1995.
MLA aipamenaPayne, Adrian. The Essence of Services Marketing. Prentice hall of india, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.