Singh, R. (2003). Ecotourism and wild life tourism: Policies and guidelines. Kanishka.
Čikaški stil citiranjaSingh, Ratandeep. Ecotourism and Wild Life Tourism: Policies and Guidelines. New Delhi: Kanishka, 2003.
MLA način citiranjaSingh, Ratandeep. Ecotourism and Wild Life Tourism: Policies and Guidelines. Kanishka, 2003.
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