TY  - BOOK
AU  - Cartmell , E
AU  - Fowles , G . W . A
TI  - Valency and molecular structure
SN  - 0408709227
U1  - 541 
PY  - 1977///
CY  - London
PB  - Butterworth and Co publishers Ltd
KW  - Valency
KW  - Molecular structure
ER  -