TY  - BOOK
AU  - Spencer,Edgar Winston
TI  - Physical geology
SN  - 0201064235 :
AV  - QE28.2.S6 1983 
U1  - 551 
PY  - 1983///
CY  - Reading, MA
PB  - Addison-Wesley Pub. Co.
KW  - Physical geology
ER  -