TY  - BOOK
AU  - Keller,Edward A.
AU  - Botkin,Daniel B.
TI  - Essential environmental science
SN  - 9780471704119 (pbk.)
PY  - 2008///
CY  - Hoboken, NJ
PB  - John Wiley
KW  - Environmental sciences
UR  - http://www.loc.gov/catdir/enhancements/fy0740/2007033352-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0740/2007033352-t.html
ER  -