Author

William C. Phinney

2 books found

Placeholder cover for The Duluth Complex in the Gabbro Lake quadrange, Minnesota

The Duluth Complex in the Gabbro Lake quadrange, Minnesota

William C. Phinney · First published 1969

Placeholder cover for A teacher's guide for geologic field investigations in Minnesota

A teacher's guide for geologic field investigations in Minnesota

William C. Phinney · First published 1967