TY  - RPRT
TI  - Length scale measurement procedures at the National Bureau of Standards 
AU  - Beers, John S
PY  - 1987
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 87-3625
DO  - 10.6028/NBS.IR.87-3625
ER  -