00595nam a22001457a 4500008004100000040005500041245010500096260005200201300001500253650001300268700002300281942001300304999001700317952011500334230726b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aReport of the 54th national conference on weights and measures 1969 c/ U. S. Department of Commerce  aU.S.A.: bU. S. Department of Commerce, c1969   aix, 262p.   aScience   aKoeser, R L (Ed.)   2udccREP  c55317d55317  00102udc4070996966aNSLbNSLcGF/Rk-8/C-21/R-3d1974-03-25l0p50394r2023-07-26 00:00:00w1974-03-25yREP