000 00581nam a2200157Ia 4500
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040 _aNITIL
_cNITIL
082 _221st
_a551.49
_bT472C
100 _aThomas, Harold E
245 4 _aThe Conservation of ground water
_ba survey of the preseent ground water situation in the United States
_cHarold E Thomas
260 _aNew York
_bMcGraw-Hill
_c1951
300 _axv, 327p.
500 _aSponsard by the conservation foundation
650 _aGround waters-United States; Conservation of natural resources-United States
942 _cBKS
999 _c40641
_d40641