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Author

William N. Orr

4 books found

Cover of Geology of the Pacific Northwest

Geology of the Pacific Northwest

William N. Orr, Elizabeth L. Orr · First published 2001 · Latest edition 2006

Cover of Geology of the Pacific Northwest

Geology of the Pacific Northwest

Elizabeth L. Orr, William N. Orr · First published 1995

Cover of Handbook of Oregon plant and animal fossils

Handbook of Oregon plant and animal fossils

William N. Orr · First published 1981

Placeholder cover for A late Tertiary diatom flora from Oregon

A late Tertiary diatom flora from Oregon

William N. Orr · First published 1971