Παραπομπή APA

Negi,Jagmohan. (1990). Tourism and travel: Concepts and principles. Gitanjali Publishing House.

Παραπομπή Chicago Style

Negi,Jagmohan. Tourism and Travel: Concepts and Principles. New Delhi: Gitanjali Publishing House, 1990.

Παραπομπή MLA

Negi,Jagmohan. Tourism and Travel: Concepts and Principles. Gitanjali Publishing House, 1990.

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