APA aipamena

Negi, J. (2008). Travel agency operations: Concepts and principles. Kaniksha.

Chicago Style aipamena

Negi, Jagmohan. Travel Agency Operations: Concepts and Principles. New Delhi: Kaniksha, 2008.

MLA aipamena

Negi, Jagmohan. Travel Agency Operations: Concepts and Principles. Kaniksha, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.