000 00263nam a2200109Ia 4500
008 201201s9999 xx 000 0 und d
082 _a526.9
100 _aPERROTT, S.W.
245 0 _aSURVEYING FOR YOUNG ENGINEERS
260 _bLONDON, CHAPMAN
_c1955
942 _cOB
999 _c16693
_d16693