TY - BOOK AU - Skinner,Brian J. AU - Porter,Stephen C. TI - The dynamic earth: an introduction to physical geology SN - 0471531316 AV - QE28.2 .S55 1992 U1 - 550 20 PY - 1992/// CY - New York PB - Wiley KW - Physical geology N1 - Includes bibliographical references (p. [559]-560) and index ER -