Abstracts of papers dealing with coal, presented at the third annual Mineral Industries Conference of Illinois, May 17-18, 1935
Series: Illinois. State Geological Survey. Information circular -- no. 10; Circular (Illinois State Geological Survey) -- no. 10.; Information circular (Illinois State Geological Survey) -- no. 10.
Published: 1935
Place of publication: Urbana
Language: eng
Subjects: Coal; Mineral industries; Congresses