APA-viite

Singh, L. (2008). Marketing in service industry - airline, travel, tours and hotel. ISHA Books.

Chicago-tyylinen lähdeviittaus

Singh, L.K. Marketing in Service Industry - Airline, Travel, Tours and Hotel. New Delhi: ISHA Books, 2008.

MLA-viite

Singh, L.K. Marketing in Service Industry - Airline, Travel, Tours and Hotel. ISHA Books, 2008.