TY  - BOOK
AU  - Swedish University of Agricutlrual Sciences
TI  - Weeds and weed control : 28th swedish weed conference 
SN  - 91-576-2925-0
U1  - 632.954 
PY  - 1987///
CY  - Uppsala
PB  - Swedish University of Agril. Scineces
ER  -