Negi, J. (1998). Travel agency and tour operation: Concepts and principles. Kanishka.
Chicago ZitierstilNegi, Jagmohan. Travel Agency and Tour Operation: Concepts and Principles. New Delhi: Kanishka, 1998.
MLA ZitierstilNegi, Jagmohan. Travel Agency and Tour Operation: Concepts and Principles. Kanishka, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.