TY - GEN AU - Twiss,Robert J. AU - Moores,Eldridge M. TI - Structural geology SN - 0716722526 AV - QE601 U1 - 551.8 20 PY - 1992/// CY - New York PB - W.H. Freeman KW - Geology Structural N1 - Includes bibliographical references and index ER -