Alt, David D. Roadside geology of northern California / [electronic resource] / David D. Alt, Donald W. Hyndman.. — Missoula, Mont. : : Mountain Press Pub. Co.,, [1975]. — xii, 244 p. : : ill. (some col.) ; 23 cm. Includes index. Bibliography: p. 244. ISBN: 087842055X : $5.95 9780878420551 LCCN: 74081834 Subjects--Topical Terms: Geology--California--Guidebooks. LC Class. No.: QE90.N8 / A38 Dewey Class. No.: 557.94