Books by Robert W. Frey
Earth history
Excursions in southeastern geo
Excursions in southeastern geology
The study of trace fossils
The study of trace fossils
The Neogene of the Georgia coa
The Neogene of the Georgia coast
Paleoecology and depositional
Paleoecology and depositional environment of Fort Hays limestone member, Niobrara Chalk (Upper Cretaceous) west-central Kansas
Trace fossils of Fort Hays lim
Trace fossils of Fort Hays limestone member of Niobrara Chalk (upper cretaceous), west-central Kansas
A survey of Indiana geology
A survey of Indiana geology