1. Agricultural decision analysis;Anderson,1977
2. Weed control economics;Auld,1987
3. Weed damage to crops: Yield loss due to weed competition;Chisaka,1977
4. Theory and reality of weed control thresholds;Cousens;Plant Protection Quarterly,1987
5. Modelling the economics of controlling Avenua fatua in winter wheat;Cousens;Pestic. Sci.,1986