000 00454cam a22001097a 4500
008 180718b1952 xxu||||| |||| 00| 0 eng d
082 _aT82 In2n/2
245 _aUnits & standards of measurements employed at the national physical laboratory
_cby Department of Scientific and Industrial Research, United
260 _aLondon
_bHer Majesty's Stationery Office
_c1952
300 _a8p
700 _aUnited Kingdom. Department of Scientific and Industrial Research
999 _c498259
_d498259