APA-viite

Amitava Mitra & Kunal Chattopadhyay. (2003). Environment and nature-based tourism: An endeavour at sustainability. Kanishka.

Chicago-tyylinen lähdeviittaus

Amitava Mitra ja Kunal Chattopadhyay. Environment and Nature-based Tourism: An Endeavour at Sustainability. New Delhi: Kanishka, 2003.

MLA-viite

Amitava Mitra ja Kunal Chattopadhyay. Environment and Nature-based Tourism: An Endeavour at Sustainability. Kanishka, 2003.