Books by H. R. Tolley
Total count: 18
The theory of correlation as applied to farm-survey data on fattening baby beefU.S. Dept. of Agriculture1917-01-01
The standard day's work in central Illinoisperformance of implements and crews as indicated by reports from 600 farmers in a typical corn-belt areaU.S. Dept. of Agriculture1920-01-01
Experience of eastern farmers with motor trucksan analysis of 753 reports from farmer truck-ownersU.S. Dept. of Agriculture1920-01-01
The cost and utilization of power on farms where tractors are owned286 farms, Ohio, Indiana, Illinois, 1920U.S. Dept. of Agriculture1921-01-01
Corn-belt farmers' experience with motor trucksa study of 831 reports from farmers who own motor trucksU.S. Dept. of Agriculture1921-01-01
The manufacture and sale of farm equipment in 1920a summary of reports from 583 manufacturersU.S. Dept. of Agriculture1922-01-01
Input as related to output in farm organization and cost-of-production studiesU.S. Dept. of Agriculture1924-01-01
A method of testing farm-management and cost-of-production data for validity of conclusionsU.S. Dept. of Agriculture1924-01-01
Tractors and horses in the winter wheat beltOklahoma, Kansas, NebraskaGovt. print off.1924-01-01
Agricultural stability and business stabilityUnited States Department of Agriculture, Agricultural Adjustment Administration1937-01-01