TY  - BOOK
AU  - Botkin,Daniel B.
AU  - Keller, Edward A.
TI  - Environmental science: earth as aliving planet
SN  - 0471157821
AV  - GE 105 .C865 2004 
PY  - 1998///
CY  - NewYork
PB  - John Wiley & sons
KW  - Environmental sciences
KW  - Environmental sciences-case studies
KW  - Human ecology
KW  - Biological diversity
KW  - Sustanible development
ER  -