TY  - BOOK
AU  - Botkin, Daniel B.
ED  - Keller, Edward A.
TI  - Environmental science: earth as a living planet
SN  - 9780471389149.
AV  - GE 105  .B6 2003
PY  - 2003///
CY  - (New York) , 
PB  - Willey 
ER  -