139101139101 00011f2d-27d346bf 1 1 1 3 139101 01011nam a22002297a 4500139101011211s1975 be 100 0 eng cJu*Meeting on pathological factors of the monoculture of cereals(3 :Gembloux :1975)3rd meeting on pathological factors of the monoculture of cereals, A.R.C./E.P.P.O., 17-18-19 june 1975, Gembloux-Wépion, Belgique :3e conference sur les facteurs pathogenes des monocultures de cereales, C.R.A./O.E.P.P., 17-18-19 juin 1975Gembloux,1975[458] bl. :tab.Jux