TY  - BOOK
AU  - Skinner,Brian J.
AU  - Porter,Stephen C.
TI  - The blue planet: an introduction to earth system science 
SN  - 0471540218
AV  - QB631 .S57 1995
PY  - 1995///
CY  - New York
PB  - John Wiley
KW  - Earth system
KW  - Planet
KW  - Earth
ER  -