TY  - RPRT
TI  - Precision laboratory standards of mass and laboratory weights 
AU  - Lashof, T W
AU  - Macurdy, L B
PY  - 1978
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 78-1476
DO  - 10.6028/NBS.IR.78-1476
ER  -