Pradeep Kumar Johri. (2005). Encyclopaedia of Tourism in 21st century Vol-3: Tourism marketing. Anmol.
Chicago Style aipamenaPradeep Kumar Johri. Encyclopaedia of Tourism in 21st Century Vol-3: Tourism Marketing. New Delhi: Anmol, 2005.
MLA aipamenaPradeep Kumar Johri. Encyclopaedia of Tourism in 21st Century Vol-3: Tourism Marketing. Anmol, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.