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  - 851412629
U1  - 550 DDC 21
PY  - 1971///
CY  - Sussex
PB  - The artemis press
KW  - Earth science
KW  - Geology
KW  - Earth (planet)
ER  -