TY  - BOOK
AU  - 
TI  - The ecology of agricultural systems
SN  - 0521231256
AV  - S589.7 .B38 1982
U1  - 306/.3 19
PY  - 1982///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University Press
KW  - Agricultural ecology
KW  - Agricultural systems
N1  - Bibliography: p. 110-112
ER  -