000 00389cam a2200157ua 4500
003 OSt
008 250506b |||||||| |||| 00| 0 eng d
041 _aeng
082 _a624.1517
_bWIL/SU
100 _aWilliamson, James .
_97466
245 _aSurveying and field work /
250 _a3 /
260 _aLondon :
_bConstable and Company Ltd ,
_c1952.
300 _a551 ; .
942 _cBK
999 _c9546
_d9546