Contributions

  • Maddock, Thomas, joint author. - Contributor

Publication

1953 - U.S. Govt. Print. Off., Washington, District of Columbia

Language

English

Word Count

14,250 words, Guess

Page Count

57 pages

Identifiers

Classifications

  • LCCQE75 .P9 no. 252

Subjects

Series Statement

  • Geological Survey professional paper 252

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