TY - BOOK AU - Press,Frank AU - Siever,Raymond TI - Understanding earth SN - 0716735040 (pbk.) AV - QE28 .P9 2001 U1 - 550 21 PY - 2001/// CY - New York PB - W.H. Freeman KW - Earth sciences N1 - "First printing"--T.p. verso; Includes bibliographical references and index ER -