TY  - RPRT
TI  - Supplement no. 2 to circular no. 24: publications of the Bureau of Standards
PY  - 1919
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 24sup2
DO  - 10.6028/NBS.CIRC.24sup2
ER  -