00305nam a2200121Ia 4500008004100000020001500041041001200056100001600068245004300084260003800127300000800165650001000173221030s9999    xx            000 0 und d  a0074635387  aEnglish  aN. N. Basak 0aIrrigation Engineeringcby N. N. Basak  bMcGraw - Hill Pub.aChennaic2018  a328  aCivil