TY  - BOOK
AU  - Collins Wanda W
AU  - Qualset Calvin O
TI  - Biodiversity in agroecosystems
SN  - 1-56670-290-9
U1  - 630 
PY  - 1999///
CY  - Boca Raton
PB  - CRC Press
KW  - Agricultural ecology
KW  - Agricultural systems
KW  - Biological diversity
ER  -