000 002870000a22001210004500
245 _aPrinciples of ground water engineering
100 _aWalton, William C.
260 _aMichigan
_bLewis Pub.
_c1991
020 _a0-87371-283-8
080 _a626.811
_bW3
041 _aEN
942 _cBK
999 _c64243
_d64243