00271nam a22001097a 4500003000400000008004100004082001700045100001700062245004100079260003300120300000800153OSt240517b        |||||||| |||| 00| 0 eng d  a627.52bP93I  aPunmia, B.C.  aIntroductory Irrigation Engineering   aStandardbUBSPD, Patnac1985  a616