APA aipamena

Negi,Jagmohan. (1990). Tourism and travel: Concepts and principles. Gitanjali Publishing House.

Chicago Style aipamena

Negi,Jagmohan. Tourism and Travel: Concepts and Principles. New Delhi: Gitanjali Publishing House, 1990.

MLA aipamena

Negi,Jagmohan. Tourism and Travel: Concepts and Principles. Gitanjali Publishing House, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.