000 00284n a2200121ua 4500
003 OSt
040 _cIIT Kanpur
041 _aeng
110 _aU.S. Geological Survey
245 0 _aWater Supply Paper # 1669G
_cU.S. Geological Survey
260 _bU.S. Dept. of Interior
942 _cBK
999 _c459189
_d459189