Chisholm, L. J. Units of weight and measure; : international (metric) and U.S. customary [electronic resource] / [by] L. J. Chisholm.. — Washington, : U.S. Dept. of Commerce, National Bureau of Standards; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,, 1967.. — 251 p. 26 cm. - National Bureau of Standards miscellaneous publication ; 286.