00508 a2200193 4500 8170353351 363.7284 UPA 19480 29856 Upadhyay, Alka Rani Aquatic plants for the water treatment Delhi Daya publishing House 2004 2004 x,181p. 23cm Other social problems and services Liquid wastes wastes Sanitation Environmental problems L 47214 47214 0 0 0 0 LEN MKDL MKDL LEN 2009-07-08 0 363.7284UPA 63225 2009-07-08 00:00:00 0.00 2016-10-31 L 0 0 0 0 LEN MKDL MKDL LEN 2009-07-09 0 363.7284UPA 62503 2009-07-09 00:00:00 0.00 2016-10-31 L 0 0 0 0 LEN MKDL MKDL LEN 2009-07-09 0 363.7284UPA 63224 2009-07-09 00:00:00 0.00 2016-10-31 L 0 0 0 0 LEN MKDL MKDL LEN 2009-07-09 0 363.7284UPA 62504 2009-07-09 00:00:00 0.00 2016-10-31 L