Environmental impact of sewage and effluent disposal on the river system
Palharya , J.p.
Environmental impact of sewage and effluent disposal on the river system - New Delhi Ashish Publishing House 1993 - 179 p. Illustration 22 cm.
8170245400
Environmental impact studies
333.714 / PAL
Environmental impact of sewage and effluent disposal on the river system - New Delhi Ashish Publishing House 1993 - 179 p. Illustration 22 cm.
8170245400
Environmental impact studies
333.714 / PAL