TY  - BOOK
AU  - Kaufmann, Robert K., and Cutler J. Cleveland
TI  - Environmental Science
SN  - 978-0-07-298429-3
AV  - GE 105  .K386 2008
PY  - 2008///
CY  - Boston
PB  - Mcgraw hill
KW  - 1. Environmental sciences 2. Nature---effect of human beings
ER  -