TY  - BOOK
AU  - Tivy, Joy
TI  - Agricultural Ecology
SN  - 0582301637
U1  - 574.5 20
PY  - 1990///
CY  - New York
PB  - Longman Scientific and Technical
KW  - Agriculture
KW  - Ecology
N1  - Includes: References, Index
ER  -