Institution of Engineers
Proceedings of the seminar / workshop on water conservation and public awareness,Sept 25-26,1992 - Roorkee University of Roorkee 1992 - 340 p.
Water conservation
622.5:531.62 I5S
Proceedings of the seminar / workshop on water conservation and public awareness,Sept 25-26,1992 - Roorkee University of Roorkee 1992 - 340 p.
Water conservation
622.5:531.62 I5S