Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United StatesPaul G. Schruben · First published 2002Open the Tome
Geology of the Venezuelan Guayana Shield at 1:500,000 scalePaul G. Schruben · First published 1995Open the Tome
Geology of the conterminous United States at 1:2,500,000 scalePaul G. Schruben, Raymond E. Arndt, W. J. Bawiec, Russell A. Ambroziak, Philip Burke King, Geological Survey (U.S.) · First published 1994Open the Tome
Computer-generated mineral commodity deposit mapsPaul G. Schruben · First published 1983Open the Tome
