Negi, J., & Manoher, G. (2005). Travel agency operations: Concepts and principles (with examination questions). Kanishka Publishers, Distributors.
Citace podle Chicago (17th ed.)Negi, Jagmohan, a Gaurav Manoher. Travel Agency Operations: Concepts and Principles (with Examination Questions). New Delhi: Kanishka Publishers, Distributors, 2005.
Citace podle MLA (8th ed.)Negi, Jagmohan, a Gaurav Manoher. Travel Agency Operations: Concepts and Principles (with Examination Questions). Kanishka Publishers, Distributors, 2005.
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