APA-viite

Singh, R. (2003). Ecotourism and wild life tourism: Policies and guidelines. Kanishka.

Chicago-tyylinen lähdeviittaus

Singh, Ratandeep. Ecotourism and Wild Life Tourism: Policies and Guidelines. New Delhi: Kanishka, 2003.

MLA-viite

Singh, Ratandeep. Ecotourism and Wild Life Tourism: Policies and Guidelines. Kanishka, 2003.