APA aipamena

Gupta, D. D. (2011). Tourism marketing. Pearson.

Chicago Style aipamena

Gupta, Devashish Das. Tourism Marketing. Delhi: Pearson, 2011.

MLA aipamena

Gupta, Devashish Das. Tourism Marketing. Pearson, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.