APA aipamena

Singh, L. (2008). Fundamental of tourism and travel. Isha Books.

Chicago Style aipamena

Singh, L.K. Fundamental of Tourism and Travel. Delhi: Isha Books, 2008.

MLA aipamena

Singh, L.K. Fundamental of Tourism and Travel. Isha Books, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.