Proceedings of the Seminar on Rural and Urban Water Supply: 29-30th Nov. 1986 / 

 - 1st ed. / 
 - Calcutta :  Indian National Committee ,  1986. 
 - 69p. :  ill. ;  28cm . 
<br/><br/><label>Subjects--Index Terms: </label>Geology Water Supply, Rural and Urban PG-Geology 
<br/><br/><label>Dewey Class. No.: </label>551.49  / Si 61 Pr