APA استشهاد

Singh, R. (2011). Tourism sector: Facing the challenge. Sonali.

استشهاد بنمط شيكاغو

Singh, Rajesh. Tourism Sector: Facing the Challenge. New Delhi: Sonali, 2011.

MLA استشهاد

Singh, Rajesh. Tourism Sector: Facing the Challenge. Sonali, 2011.