TY  - RPRT
TI  - Circular of the Bureau of Standards no. 16 5th edition: the testing of hydrometers
PY  - 1922
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 16e5
DO  - 10.6028/NBS.CIRC.16e5
ER  -