TY - BOOK AU - Cramer,Christopher J. TI - Essentials of computational chemistry: theories and models SN - 0471485527 AV - QD455.3.E4 C73 2002 PY - 2002/// CY - Chichester PB - John Wiley & Sons KW - Chemistry, Physical and theoretical KW - Data processing KW - Mathematical models N1 - Includes bibliographical references and index ER -