00332cam a22001217a 4500 180718b1972 xxu||||| |||| 00| 0 eng d T82 Un3 Ede, AJ Advantages of the metric system by AJ Ede London Her Majesty's Stationery Office 1972 v, 92p. Metric system 500996 500996 0 0 0 0 IIPA IIPA 2018-08-04 T82 Un3 G11831 2018-08-04 2018-08-04 G