1. An Input-Output Analysis Emphasizing Regional and Commodity Sectors of Agriculture;Carter;Iowa State Agricultural Experiment Station Res. Bul,1959
2. Dominion Bureau of Statistics, Research and Development Division The Inter-Industry Flow of Goods and Services, Canada, 1949 July 1956
3. Farm Finance Section Handbook of Agricultural Statistics 1958
4. Farm Cash Income 21 001
5. Crops Section Handbook of Agricultural Statistics 1964