Gilluly, James, 1896- Principles of geology, [electronic resource] / by James Gilluly, A.C. Waters [and] A.O. Woodford. Drawings by Robert R. Compton and Evan L. Gillespie.. — 2d ed.. — [San Francisco] : W.H. Freeman,, 1959.. — 534 p. : illus. 26 cm. - A Series of geology texts.