Contributions

  • Bengal, Lawrence E. - Contributor
  • Illinois State Geological Survey - Contributor

Publication

1981 - Illinois State Geological Survey, Champaign, Ill, Illinois

Language

English

Word Count

6,000 words, Guess

Page Count

24 pages

Identifiers

Classifications

  • DDC557
  • LCCQE105 .A45 no. 521

Subjects

Series Statement

  • Circular / Illinois State Geological Survey -- 521

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