000 00498 a2200145 4500
082 _a631.523
_bREP
090 _c21875
_d34271
245 _aReport of a working group on sunflower
260 _aRome
_bInternational Board for Plant Genetic Resources
_c1992
_g1992
300 _axi,7p.
_c30cm
440 _aEuropean cooperrative programme for crop genetic resources networks
650 _aDevelopment of new varieties
650 _aProduction of propagational organisms and new varieties
942 _cL
999 _c49304
_d49304