APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：这些引文格式不一定是100％准确.