TY  - BOOK
AU  - ,Peter Smith 
AU  - R.C.L Wilson
TI  - Understanding the earth: A reader in the earth sciences 
SN  - 851413099
U1  - 551 
PY  - 1972///
CY  - Wisbech
PB  - Balding and Mansell
N1  - Includes bibliographic references and index
ER  -