APA引文

Surinder Kumar. (2011). Economic impact of travel and tourism. Sonali Publications.

Chicago Edition Citation

Surinder Kumar. Economic Impact of Travel and Tourism. New Delhi: Sonali Publications, 2011.

MLA引文

Surinder Kumar. Economic Impact of Travel and Tourism. Sonali Publications, 2011.

警告：這些引文格式不一定是100％准確.