000 002930000a22001090004500
245 _aHandbook No. 18 1972 : Metric standards for engineering
110 _aBritish Standards Institution, London GB
260 _aLondon
_bBSI
_c1972
080 _a62:389.151
_bB7
041 _aEN
942 _cBK
999 _c109844
_d109844