1.
Roadside Bedrock and Mining Geology of the Upper Peninsula Michigan, United States (Roadside...
by Baumann, Steven, Piispa, El...
ISBN: 9781516841042
List Price: $29.69
2.
Publications of the Midwest Institute of Geosciences and Engineering: Volume 3
by Piispa, Elisa J., Sweeten, ...
ISBN: 9798444542347