TY  - BOOK
AU  - E Cartmbll and G W a Fowles 
AU  - Cartmbll, E    Fowles, G W a 
TI  - velency And Moleculor Structure 
U1  - 547.122, CAR  
PY  - 1977///
CY  - London
PB  - E.L.B.S
ER  -