TY  - RPRT
TI  - Supplement to Bureau of Standards circular no. 47: table of equivalents-millimeters to inches
PY  - 1917
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 47sup
DO  - 10.6028/NBS.CIRC.47sup
ER  -