Read the next issue of Agriculture, Ecosystems and Environment
Journal and note paper by CLements at al.
Dr. C.J.Swanton,
Associate Professor, Weed Ecology,
Department of Crop Science,
Univ. of Guelph, Guelph, Ontario. N1G 2W1
Email: cswanton@crop.uoguelph.ca
Fax: 1-519-763-8933
Phone: 1-519-824-4120 Ext. 2512