Coal quality loss from acquisition to analysis
Subtitle: a preliminary time study
By: by Robert G. Hobbs, James D. Cathcart, and George A. Correia ; United States Department of the Interior, Geological Survey.
Contributors: Cathcart, James D.; Correia, G. A.; Geological Survey (U.S.)
Series: Open-file report -- 83-167.; Open-file report (Geological Survey (U.S.)) -- 83-167.
Publisher: The Survey
Published: 1983
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Coal -- United States -- Analysis.; Coal -- Geology -- United States.
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1983?]. 2 microfiches ; 11 x 15 cm.

Bibliography: leaf 41.