TY  - BOOK
AU  - Gregory K J ` Ed.
AU  -  Walling D E Ed.
TI  - Man and environmental processes
T2  - Studies physical geography
U1  - H4z7, M1 
PY  - 1981///
CY  - London
PB  - Butterworths         
KW  -  Dynamic geology
KW  - Geology
ER  -