Books by Paul G. Schruben
Assessment of undiscovered dep
Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States
Geology of the Venezuelan Guay
Geology of the Venezuelan Guayana Shield at 1:500,000 scale
Geology of the conterminous Un
Geology of the conterminous United States at 1:2,500,000 scale