APA aipamena

Verma, H. V. (2008). Services marketing. Pearson.

Chicago Style aipamena

Verma, Harsh V. Services Marketing. Delhi: Pearson, 2008.

MLA aipamena

Verma, Harsh V. Services Marketing. Pearson, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.