Reserves and resources of surface-minable coal in Illinois
By: Colin G. Treworgy, Lawrence E. Bengal, and Amy G. Dingwell.
Contributors: Bengal, Lawrence E., joint author.; Dingwell, Amy G., joint author.
Series: Circular - Illinois State Geological Survey ; 504; Circular (Illinois State Geological Survey) ;; 504.
Publisher: Illinois State Geological Survey
Published: 1978
Place of publication: Urbana
Language: eng
Number of pages: 44
Subjects: Coal -- Illinois.; Strip mining -- Illinois.
Notes: Bibliography: p. 18.