1. Chemical weed control by Illinois farmers. Illinois Agr;Statistics, Illinois Dep. Agr. and U.S. Dep. Agr. Bull.,1948
2. The influence of corn yields when weeds were controlled by herbicides;Meggitt;Proc. NEWCC,1960
3. Control those weeds early;Knake;Illinois Res.,1962
4. The economics of controlling grass weeds in corn production;Drew;Illinois Agr. Econ.,1966