Zulfikar , M. (1998). Introduction to tourism and hotel industry --- officen Mgt. Vikas.
Citazione stile Chigago Style (17a edizione)Zulfikar , Mohammed. Introduction to Tourism and Hotel Industry --- Officen Mgt. New Delhi: Vikas, 1998.
Citatione MLA (9a ed.)Zulfikar , Mohammed. Introduction to Tourism and Hotel Industry --- Officen Mgt. Vikas, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.