TY - BOOK AU - Cramer,Christopher J. TI - Essentials of computational chemistry: theories and models SN - 0470091827 (pbk. : alk. paper) U1 - 541.0285 22 PY - 2004/// CY - Hoboken, NJ PB - John Wiley KW - Chemistry, Physical and theoretical KW - Data processing KW - Mathematical models ER -