RAju, G. (2009). Ecotourism guidance for tour operator. Mangalam Publ.
Chicago-čujuhus (17. p.)RAju, G.P. Ecotourism Guidance for Tour Operator. Delhi: Mangalam Publ, 2009.
MLA-čujuhus (9. p.)RAju, G.P. Ecotourism Guidance for Tour Operator. Mangalam Publ, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.