Citazione Stile APA (7a Edizione)

Singh, S. (1999). studies in tourism: Key issues for effective management. A P H.

Citazione stile Chigago Style (17a edizione)

Singh, Sagar. Studies in Tourism: Key Issues for Effective Management. New Delhi: A P H, 1999.

Citatione MLA (9a ed.)

Singh, Sagar. Studies in Tourism: Key Issues for Effective Management. A P H, 1999.