Srinivasan R. (2012). Services marketing (3rd ed.). PHI Learning.
Chicago Style aipamenaSrinivasan R. Services Marketing. 3rd ed. New Delhi: PHI Learning, 2012.
MLA aipamenaSrinivasan R. Services Marketing. 3rd ed. PHI Learning, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.