TY  - RPRT
TI  - Circular of the Bureau of Standards no. 547 section 1: precision laboratory standards of mass and laboratory weights
AU  - Lashof, T W
PY  - 1954
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 547
DO  - 10.6028/NBS.CIRC.547
ER  -