PAYNE, A. (1993). Essence Of Services Marketing. Prentice-Hall.
Chicago Style aipamenaPAYNE, Adrian. Essence Of Services Marketing. Prentice-Hall, 1993.
MLA aipamenaPAYNE, Adrian. Essence Of Services Marketing. Prentice-Hall, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.