TY  - RPRT
TI  - Circular of the Bureau of Standards no. 46 third edition: testing of barometers and altimeters
PY  - 1922
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 46e3
DO  - 10.6028/NBS.CIRC.46e3
ER  -