Research and service of the Illinois State Geological Survey.- Urbana, IL.- 24 S.: Ill.
1. Verfasser: |
Frye, John C.
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Ort/Verlag/Jahr: |
1969.
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Schlagworte: | |
Enthalten in: |
Illinois State Geological Survey <Urbana-IL>: annual report of the Department of Registration and Education; July 1, 1967 - June 30, 1968 |
Keine Informationen zu Zugangsbeschränkungen |