TY  - BOOK
AU  - Murrell, J. N.
AU  - Kettle, S. F. A.
AU  - Tedder, John Michael,
TI  -  Valence theory
SN  - 0471626880
U1  - 541/.224 
PY  - 1970///]
CY  - London,  New York
PB  - J. Wiley
KW  - Valence (Theoretical chemistry)
ER  -