TY  - RPRT
TI  - Circular of the Bureau of Standards no. 26 2nd edition: analyzed iron and manganese ores- methods of analysis
PY  - 1911
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 26e2
DO  - 10.6028/NBS.CIRC.26e2
ER  -