000 00509nam a22001337a 4500
082 _a620.191
_bNAT
_cD
100 _aNational academy of science national research Council
245 _aFundamental and practical concept of soil freezing
_cNational academy of science national research Council
260 _aWasginhton, DC
_bNational academy of science national research Council
_c1957
300 _a205 p,:
_bill,
650 _aNUST
700 _aNational academy of science national research Council
942 _cBK
999 _c5352
_d5352