TY - BOOK AU - Levine Ira L. AU - Levine Ira L. TI - Quantum chemistry SN - 9788120348172 (pbk) U1 - E:(CN1), L4;Q4:7-:11 PY - 2014/// CY - New Delhi PB - PHI KW - Electron-correation methods KW - Harmonic osillator KW - Hydrogen atom KW - Perturbation theory KW - Operators N1 - Appendix 661-663p.; Bibliography 665-666p.; Answer to selected problems 667-677p.; Index 679-700p ER -