TY  - BOOK
AU  - Engel, Thomas  .
TI  - Quantum chemistry and spectroscopy / 
SN  - 0-8053-3843-8
U1  - E 
PY  - 2006///
CY  - New York : 
PB  - Pearson Education Limited , 
KW  - Chemistry, Physical and theoretical-Textbooks
ER  -