TY  - BOOK
AU  - Cas R A F
AU  -  Wright J V
TI  - Volcanic successions modern and ancient :  A gelogical  approach processes,produts and successions   
SN  - 0045220224
U1  - H411, M7 
PY  - 1987///
CY  - London
PB  - Allen and Unwin U K      
KW  - Geology
ER  -