TY  - BOOK
AU  - Duff, P. Ed.
TI  - Holmes' principles of physical geology
U1  - 551 
PY  - 1992///
CY  - London,New York etc
PB  - Chapman & Hall Ltd.
KW  - Agriculture--Origin
KW  - Physical geology
KW  - Geology
KW  - Housing
KW  - Housing policy
KW  - Urban policy
N1  - ENG
ER  -