00441nam a22001337a 4500 230720b |||||||| |||| 00| 0 eng d National Science Library National Science Library Precision measurement and calibration selected NBS papers on colorimetry Washington: United States Department of Commerce, 1972 442p. Science Measurement udc BK 53825 53825 0 0 udc 0 0 89495 NSL NSL GF/Rk-8/C-14/R-1 2023-07-20 0 43316 2023-07-20 00:00:00 2023-07-20 BK