TY - GEN AU - Singh,Gajraj TI - GIS in water resources engineering SN - 9789380090511 (hbk.) AV - GB661.2 .G866 2010 U1 - 627 PY - 2012/// CY - New Delhi PB - SBS Publishers KW - Hydrology KW - Water resources development N1 - Includes index ER -