Vyas, L., & Garg, R. (1989). Wetland Conservation. Environment community centre.
Lua i Stíl Chicago (17ú heag.)Vyas, L.N, agus R.K Garg. Wetland Conservation. Udaipur: Environment community centre, 1989.
Lua MLA (9ú heag.)Vyas, L.N, agus R.K Garg. Wetland Conservation. Environment community centre, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.