Huw Powell
3 published titles
Cynllunio a rheoli gaeafu allan = Planning and managing out-wintering
(Contributor)
1 edition
Rheoli plâu ac afiechydon mewn cnydau glaswellt a phorthiant = Pest and disease control in grass and forage crops
(Contributor)
1 edition
Graddnodi mesuryddion plât i fesur glaswellt yn well = Calibrating plate meters for better grass measuring
1 edition
