000 003090000a22001210004500
245 _aSI symbols, abbreviations and conventions
110 _aCity and Guilds of London Institute
260 _aLondon
_bCity & Guilds
_c1976
300 _a24p.
080 _a53.08.003.62
_bC6
041 _aEN
942 _cBK
999 _c113642
_d113642