D.M. Sheridan P. K. Sims books & textbook

Precambrian Field Trip, Front Range: 1958 Annual Meeting, Rocky Mountain Section, Geological Society of America

P.K. Sims J.E. Harrison D.M. Sheridan R.M. Hutchinson

Pamphlet

Geology of uranium deposits in the Front Range, Colorado

D.M. Sheridan P. K. Sims

U.S. Atomic Energy Commission /1964-01-01 Paperback / 116 Pages