TY  - BOOK
AU  - Stephen, Gliessman R.
TI  - Agroecology: researching the ecological basis for sustainable agriculture
SN  - 0387970282
U1  - 630.21515 
PY  - 1990///
CY  - New York
PB  - Springer-Verlag
KW  - Sustainable agriculture
KW  - Research
KW  - Agricultural ecology
ER  -