William N. Orr
Showing 1-2 of 2 items.
Oregon Geology
By Elizabeth L. Orr and William N. Orr
Oregon State University Press
This extensively updated sixth edition of The Geology of Oregon provides a comprehensive treatment of the state's geologic history and includes illustrations, an extensive bibliography, and biographical sketches of notable geologists.
- Copyright year: 2012
Oregon Fossils, Second Edition
By Elizabeth L. Orr and William N. Orr
Oregon State University Press
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