Pests,pathogens and vegetation the role of weeds and wild plants in the papers
Symposium on the Role Weeds and Wild Plants in the Ecology of Crop Pests and Diseases, Uuniversity of York, April15-17, 1980
Pests,pathogens and vegetation the role of weeds and wild plants in the papers - 1981
632.58 / S99P
Pests,pathogens and vegetation the role of weeds and wild plants in the papers - 1981
632.58 / S99P