Negi, J. (2008). Travel agency operations: Concepts and principles. Kaniksha.
シカゴスタイル引用形Negi, Jagmohan. Travel Agency Operations: Concepts and Principles. New Delhi: Kaniksha, 2008.
MLA引用形式Negi, Jagmohan. Travel Agency Operations: Concepts and Principles. Kaniksha, 2008.
警告: この引用は必ずしも正確ではありません.