TY - BOOK AU - Marshak,Stephen TI - Earth: portrait of a planet SN - 9780393935189 (pbk.) AV - QE26.3 M37 2012 U1 - 550 23 PY - 2012/// CY - New York PB - W. W. Norton KW - Geología KW - Geology KW - Textbooks N1 - Incluye referencias bibliográficas e índice; Our island in space -- Earth materials -- Tectonic activity of a dynamic planet -- History before history -- Earth resources -- Processes and problems at the Earth's surface ER -