TY  - BOOK
AU  - Parr,Robert G.
TI  - The quantum theory of molecular electronic structure : : a lecture-note and reprint volume / 
PY  - 1964///
CY  - New York : 
PB  - W. A. Benjamin, 
KW  - TEORIA CUANTICA
N1  - "Reprints": p. 161-501
N2  - Small molecules- Planar unsaturated molecules - Three approaches to the many-electron correlation. Reprints
ER  -