Water, ecology, pollution, and management /
Sankara Pitchaiah, P.
Water, ecology, pollution, and management / by P Sankara Pitchaiah and B Sambasiva Rao. - Allahabad : Chugh Publications ; 1991. - xii ; 298 p., 21 cm.
8185076
333.9100954 / SAN
Water, ecology, pollution, and management / by P Sankara Pitchaiah and B Sambasiva Rao. - Allahabad : Chugh Publications ; 1991. - xii ; 298 p., 21 cm.
8185076
333.9100954 / SAN