Earle E. Spamer

Colorado River: Origin and Evolution; Proceedings of a Symposium Held at Grand Canyon National Park in June, 2000 (Monograph)  Richard A. Young Earle E. Spamer Paperback. Grand Canyon Association, 2004-12-30 ISBN 9780938216797     Quest for the Pillar of Gold: The Mines & Miners of the Grand Canyon (Monograph)  George H. Billingsley Earle E. Spamer Dove Menkes Paperback. Grand Canyon Association, 1997-09-01 ISBN 9780938216568     Bibliography of the Grand Canyon and the lower Colorado River, from 1540 (Grand Canyon Natural History Association monograph)  Earle E Spamer Grand Canyon Natural History Association, 1993 ISBN 9780938216476     The Grand Canyon Fossil Record: A Source Book in Paleontology of the Grand Canyon and Vicinity (Microfor)  Earle E. Spamer Microfiche. Geological Society of Amer, 1992-11 ISBN 9780813760247     Bibliography of the Grand Canyon and the Lower Colorado River from 1540 (IO)  Earle E. Spamer Hardcover. Grand Canyon Association, 1990-06 ISBN 9780938216377     Bibliography of the Grand Canyon and the lower Colorado River, 1540-1980 (Monograph / Grand Canyon Natural History Association)  Earle E Spamer Paperback. Grand Canyon Natural History Association, 1981 ISBN 9780938216148