Sarngadharan, M. (2005). Tourism and sustainable economic development. New Century.
Lua i Stíl Chicago (17ú heag.)Sarngadharan, M. Tourism and Sustainable Economic Development. New Delhi: New Century, 2005.
Lua MLA (9ú heag.)Sarngadharan, M. Tourism and Sustainable Economic Development. New Century, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.