TY  - RPRT
TI  - Circular of the Bureau of Standards no. 14 4th edition: analyzed irons and steels- methods of analysis
PY  - 1913
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 14e4
DO  - 10.6028/NBS.CIRC.14e4
ER  -