Saxena, H. (2000). Environmental management. Rawat.
Lua i Stíl Chicago (17ú heag.)Saxena, H. Environmental Management. Jaipur: Rawat, 2000.
Lua MLA (9ú heag.)Saxena, H. Environmental Management. Rawat, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.