TY  - BOOK
AU  - Botkin, Daniel B.
AU  - Keller, Edward A.
TI  - Environmental science: earth as a living planet
SN  - 0-471-32173-7
U1  - 577.4 
PY  - 2000///
CY  - New York
PB  - John Wiley
KW  - Environmental science
ER  -