000 00332cam a22001217a 4500
008 180718b1972 xxu||||| |||| 00| 0 eng d
082 _aT82 Un3
100 _aEde, AJ
245 _aAdvantages of the metric system
_cby AJ Ede
260 _aLondon
_bHer Majesty's Stationery Office
_c1972
300 _av, 92p.
650 _aMetric system
999 _c500996
_d500996