Standards for checking the calibration of spectrophotometers (200 to 1000 mu).
APA Citation
United States. National Bureau of Standards. (1948). Standards for checking the calibration of spectrophotometers (200 to 1000 mu). Washington, D.C.: U.S. Dept. of Commerce, National Bureau of Standards.
MLA Citation
United States. National Bureau of Standards. Standards for Checking the Calibration of Spectrophotometers (200 to 1000 Mu). Washington, D.C.: U.S. Dept. of Commerce, National Bureau of Standards, 1948.
Warning: These citations may not always be complete (especially for serials).