TY  - RPRT
TI  - Circular of the Bureau of Standards no. 16 2nd edition: the testing of hydrometers
PY  - 1911
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 16e2
DO  - 10.6028/NBS.CIRC.16e2
ER  -