TY  - BOOK
AU  - Botkin,Daniel B.
AU  - Keller,Edward A.
TI  - Environmental science: Earth as a living planet 
SN  - 0471545481
AV  - GE105.B65 1979 
PY  - 1995///
CY  - New York
PB  - Wiley
KW  - Environmental sciences
KW  - Case studies
KW  - Human ecology
KW  - Biodiversity
KW  - Sustainable development
ER  -