TY  - BOOK
AU  - Gass, I. G.
AU  - Smith, Peter J.
AU  - Wilson, R. C. L.
TI  - Understanding the earth : A reader in the earth sciences 
SN  - 851413080
U1  - 550 DDC 21
PY  - 1972///
CY  - Sussex
PB  - The artemis press
KW  - Earth science
KW  - Geology
KW  - Earth (planet)
ER  -