TY  - BOOK
AU  - Botkin, Daniel B.
AU  - Keller,Edward A.
TI  - Environmental science: earth as a living planet 
SN  - 0471389145
PY  - 2003///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Environmental sciences
KW  - Case studies
KW  - Human ecology
KW  - Biological diversity
KW  - Sustainable development
KW  - Textbooks
KW  - Ciencias ambientales
KW  - Libros de texto
ER  -