TY  - RPRT
TI  - Letter Circular 700: railway track scale testing service of the National Bureau of Standards fiscal year 1942 (July 1, 1941 to June 30, 1942)
PY  - 1942
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 700
DO  - 10.6028/NBS.LCIRC.700
ER  -