TY  - BOOK
AU  - Aldrich,R.J.
TI  - Weed- Crop Ecology: principles in weed management 
SN  - 053402 8330 :
PY  - 1984///
CY  - Massachussetts
PB  - Brenton
KW  - Weed Control
KW  - Weeds
KW  - ecology
N1  - includes an index
ER  -