TY  - RPRT
TI  - Circular of the Bureau of Standards no. 555: testing of hydrometers
AU  - Hughes, J C
PY  - 1954
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 555
DO  - 10.6028/NBS.CIRC.555
ER  -