00377nam a22000977a 4500003000400000082002900004245016400033260006100197300000900258546001200267OSt  aINDIA/AGRI&IRR/1:16/1980  aGround water arresting sub surface structure: SIDA Assisted ground water project in Noyil, Ponnani and Amaravati River basins, Tamil Nadu and Kerala Report 1:6  aCoimbatorebMinistry of agriculture and irrigationc1980  a10p.  aEnglish