http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Tests of run-of-mine and briquetted coal in a locomotive boiler
1 online resource (32 pages) : illustrations.
Title from title screen (viewed June 30, 2014).
Bulletin (Geological Survey (U.S.)) ; no. 412