Thurber, Walter A. Exploring earth science, [electronic resource] / by Walter A. Thurber and Robert E. Kilburn.. — Boston, : Allyn and Bacon,, 1965.. — 446 p. : illus. (part col.) maps (part col.) 25 cm. Bibliography : p. 428. LCCN: 66004481 Subjects--Geographic Terms: Earth. LC Class. No.: QE28 / .T45