Author

Contributions

  • Healy, R. W - Contributor
  • Weeks, Edwin P., 1936- - Contributor
  • Geological Survey (U.S.) - Contributor

Publication

1987 - Dept. of the Interior, U.S. Geological Survey, Denver, Colo, Colorado

Language

English

Word Count

46,000 words, Guess

Page Count

184 pages

Identifiers

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