Report on 1) EWRS symposium, France, 8-9 December 1981 and 2) 11th COLUMA conference, France, 10-11 December 1981
Eagle, D. J.(David John),1930-
Evans, S. A.
Great Britain. Agricultural Development and Advisory Service.
[Alnwick] M.A.F.F.
1982
Weed control