TY  - RPRT
TI  - Brief history and use of the english and metric systems of measurement with a chart of the modernized metric system (reissued Sept. 1974) 
PY  - 1968
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 304a
DO  - 10.6028/NBS.SP.304a
ER  -