Publication

1987 - U.S. G.P.O., Washington, District of Columbia

Language

English

Word Count

2,750 words, Guess

Page Count

11 pages

Identifiers

Classifications

  • DDC627.1/0724
  • LCCTC175 .S34 1987

Subjects

Series Statement

  • U.S. Geological Survey professional paper ;
  • 1384

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