TY - BOOK AU - Press,Frank AU - Siever,Raymond TI - Understanding earth SN - 0-7167-3504-0 AV - QE28 .P74 2001 PY - 2001/// CY - New York PB - W.H. Freeman KW - Earth sciences N1 - "First printing"--T.p. verso; Includes bibliographical references and index ER -