APA引文

Sethi, P. (1999). Nature and scope of tourism. Rajat publications.

Chicago Edition Citation

Sethi, Praveen. Nature and Scope of Tourism. Delhi: Rajat publications, 1999.

MLA引文

Sethi, Praveen. Nature and Scope of Tourism. Rajat publications, 1999.

警告：這些引文格式不一定是100％准確.