Books by Richard Bartlett Taylor
Economic geology--U.S.
GS MRDS
GS MRDS
An assessment of the mineral r
An assessment of the mineral resource potential of the San Isabel National Forest, south-central Colorado
Bedrock geology of Duluth and
Bedrock geology of Duluth and vicinity
Geology of the Duluth gabbro c
Geology of the Duluth gabbro complex near Duluth, Minnesota