TY  - RPRT
TI  - The present status of the producer-gas power plant in the United States. Condition of the coal-briquetting industry in the United States. The importance of uniform and systematic coal-mine sampling
AU  - R.H. Fernald
AU  - Edward Wheeler Parker
AU  - John Shober Burrows
PY  - 1907
DO  - 10.3133/b316g
UR  - https://pubs.usgs.gov/publication/b316G
ID  - b316G
ER  -