TY  - BOOK
AU  - Botkin, Daniel B. & Edward A. Keller
TI  - Environmental science 
SN  - 9780470646090
AV  - GE 105 .B 68 2012
PY  - 2012///
CY  - Asia
PB  - John Wiley & Sons 
KW  - 1. Environemental Sciences 2. Human ecology
ER  -