5Canada' s National Farmer Union. The Farm Crisis and Corporate Profits[R].National Farmers Union,2005.10-15,25.
6Surendra N.Kulshreshtha. Climate change,prairie agriculture,and prairie economy:the new normal[J].Canadian Journal of Agricultural Economics,2011,(59):19-44.
7Robert D.Tamilia,Sylvain Charlebois. The importance of marketing boards in Canada:a twenty-first century perspective[J].BRITISH FOOD JOURNAL,2007,(109):2-3.
8Royer,A. The emergence of agricultural marketing boards revisited:a case study in Canada[J].Canadian Journal of Agricultural Economics,2008,(04).