TY  - BOOK
AU  - Powell,Derek
TI  - Interpretation of geological structures through maps
SN  - 058208783X
AV  - GY QE463.P8 
PY  - 1992///
CY  - London
PB  -  :  Longman
KW  - Geological mapping
KW  - Geology
KW  - structural
ER  -