Contributions

  • Tallman, Daniel N. - Contributor
  • Pahlman, J. E. - Contributor

Publication

1987 - U.S. Dept. of the Interior, Bureau of Mines, Pittsburgh, Pa, Pennsylvania

Language

English

Word Count

5,000 words, Guess

Page Count

20 pages

Identifiers

Classifications

  • DDC622 s
  • LCCTN295 .U4 no. 9136

Subjects

Topics

Series Statement

  • Information circular ;

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