TY  - RPRT
TI  - The calibration of angle blocks by intercomparison 
AU  - Reeve, Charles P
PY  - 1980
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 80-1967
DO  - 10.6028/NBS.IR.80-1967
ER  -