TY  - BOOK
AU  - 
TI  - The ecology of agricultural systems
SN  - 9780521298292
U1  - 306.3 BAY 
PY  - 1982///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University Press
KW  - Agricultural ecology
KW  - Agricultural systems
N1  - includes Bibliography
ER  -