000 00299nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a621.7
_bCHA
100 _aChapman, W A J
245 0 _aElementary workshop calculations
250 _aEd.4
260 _aLondon
_bEdward Arnold
_c1972
942 _cBK
999 _c30751
_d30751