TY  - RPRT
TI  - Circular of the Bureau of Standards no. 40: sodium oxalate as a standard in volumetric analysis
PY  - 1912
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 40
DO  - 10.6028/NBS.CIRC.40
ER  -