TY  - RPRT
TI  - Mine sampling and chemical analyses of coals tested at the United States fuel-testing plant, Norfolk, Virginia, in 1907
AU  - John Shober Burrows
PY  - 1908
DO  - 10.3133/b362
UR  - https://pubs.usgs.gov/publication/b362
ID  - b362
ER  -