Contributions

  • Glass, H. D. joint author. - Contributor
  • Willman, H. B. 1901- joint author. - Contributor
  • Illinois. Dept. of Registration and Education. - Contributor

Publication

1962 - Illinois State Geological Survey, Urbana, Illinois

Language

English

Word Count

13,750 words, Guess

Page Count

55 pages

Identifiers

Classifications

  • LCCQE105 .A45 no. 334

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