Hydrological studies in Noyil, Vattamalai, Karai and Ponnani Drainage basins / 
Compiled by A. A. Gupta and M. E. Chandra Sekharan 
 - Coimbatore :  Central Ground Water Board,  1980 
 - 197 p. :  maps ;  33 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrogeology--India<br/>Groundwater--India
<br/><br/><label>Dewey Class. No.: </label>551.49