Cita APA

Ravi Shankar Kumar Singh. (2000). Ecotourism and sustainable development. Abhijeet Publications.

Chicago Edition Citation

Ravi Shankar Kumar Singh. Ecotourism and Sustainable Development. Delhi: Abhijeet Publications, 2000.

Cita MLA

Ravi Shankar Kumar Singh. Ecotourism and Sustainable Development. Abhijeet Publications, 2000.