TY  - RPRT
TI  - Circular of the Bureau of Standards no. 570: units and systems of weights and measures- their origin, development, and present status
AU  - Judson, Lewis V
PY  - 1956
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 570
DO  - 10.6028/NBS.CIRC.570
ER  -