Umar, R. Groundwater quality in parts of Central Ganga Basin, India - Berlin Springer-Verlag April 2000 - pp. 673-678 ilus., maps., tbls. ISSN: 0943-0105 Subjects--Topical Terms: AGUAS SUBTERRANEASCALIDAD DEL AGUACONTAMINACION DEL AGUARIESGOS PARA LA SALUD Subjects--Geographic Terms: GANGES, RIOINDIA