Water :
Sanghvi, Sheela.
Water : harvesting, purification and distribution management / by Sheela Sanghvi and Prem S. Pahwa - New Delhi : Dominant Publishers and distributors, 2001. - 3 vol. : ill. ;
8178880334
Ground water
Water pollution
Water resources
R 333.91 / SAN P01W
Water : harvesting, purification and distribution management / by Sheela Sanghvi and Prem S. Pahwa - New Delhi : Dominant Publishers and distributors, 2001. - 3 vol. : ill. ;
8178880334
Ground water
Water pollution
Water resources
R 333.91 / SAN P01W