Negi, J. (2008). Travel agency operations: Concepts and principles. Kaniksha.
Čikaški stil citiranjaNegi, Jagmohan. Travel Agency Operations: Concepts and Principles. New Delhi: Kaniksha, 2008.
MLA način citiranjaNegi, Jagmohan. Travel Agency Operations: Concepts and Principles. Kaniksha, 2008.
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