Nargundkar, R. (2010). Services Marketing (3rd.). TMH.
Chicago Style aipamenaNargundkar, Rajendra. Services Marketing. 3rd. TMH, 2010.
MLA aipamenaNargundkar, Rajendra. Services Marketing. 3rd. TMH, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.