APA-referens

Hrishikesh, S. (2014). Ecological and environmental impact of tourism. Anmol publications pvt ltd.

Chicago-stil citat

Hrishikesh, Sisodia. Ecological and Environmental Impact of Tourism. New Delhi: Anmol publications pvt ltd, 2014.

MLA-referens

Hrishikesh, Sisodia. Ecological and Environmental Impact of Tourism. Anmol publications pvt ltd, 2014.