TY  - BOOK
AU  - Daniel B. Botkin
AU  -  Edward A. Keller, 
TI  - Environmental Science : Earth as a Living Planet. Ed 6
SN  - 0-470-04990-7
U1  - 574.5 
PY  - 2007///
CY  - Canada
PB  - John Wiley and Sons Inc
N1  - Daniel B. Botkin & Edward A. Keller: Environmental Science : Earth as a Living Planet. Ed 6.  (6th Ed)  Canada.  John Wiley and Sons Inc, 2007. 0-470-04990-7--(574.5BOT)
ER  -