TY  - RPRT
TI  - Circular of the Bureau of Standards no. 19 4th edition: standard density and volumetric tables
PY  - 1914
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 19e4
DO  - 10.6028/NBS.CIRC.19e4
ER  -