Abstracts of papers dealing with rock and rock products, presented at the third annual Mineral Industries Conference of Illinois, May 17-18, 1935
Series: Illinois. State Geological Survey. Information circular -- no. 12; Circular (Illinois State Geological Survey) -- no. 12.; Information circular (Illinois State Geological Survey) -- no. 12.
Published: 1935
Place of publication: Urbana
Language: eng
Subjects: Congresses; Rocks