Sethi, P. (1999). Nature and scope of tourism. Rajat.
Chicago-čujuhus (17. p.)Sethi, Praveen. Nature and Scope of Tourism. Delhi: Rajat, 1999.
MLA-čujuhus (9. p.)Sethi, Praveen. Nature and Scope of Tourism. Rajat, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.