. "Rock formations and unusual geologic structures exploring the earth's surface"@en . . . . "Lehrbuch" . "Rock formations and unusual geologic structures : exploring the earth's surface"@en . "Rock formations and unusual geologic structures : exploring the earth's surface" . . . . . . . . . . . "Electronic books"@en . . . . . . . . . . . . "Exploring the earth's surface"@en . . . . "Rock formations and unusual geological structures : exploring the earth's surface" . . "Looks at the earth's crust, sedimentary strata, erosion, geologic mapping, fossil beds, folds and faults, volcanoes, and glaciers." . . . . . . "A detailed explanation of the forces the created the earth's landscape, including the logistics of continental rift and drift." . . . . . . . "Géologie." . . "SCIENCE Earth Sciences General." . . "Escorça terrestre." . . "Tektonik." . . "Géomorphologie." . . "Geomorphologie." . "Geología." . . "Geologia." . . . "Geomorfología." . . "Geomorfologia." . "SCIENCE Physics Geophysics." . .