Environmental education and management /

Eitemau Tebyg

• Environmental education and management
  gan: Chiranjeev, Avinash, et al.
  Cyhoeddwyd: (2008)
• River pollution in india and its management
  gan: Gopal, Krishnan
  Cyhoeddwyd: (2003)
• Environmental pollution and management /
  gan: Mohan,, I.
  Cyhoeddwyd: (1989)
• Environmental impact of sewage and effluent disposal on river system /
  gan: Palharya, J.P
  Cyhoeddwyd: (1993)
• Environmental management
  gan: Pandey, G.N
  Cyhoeddwyd: (2005)