Farmers' bulletin (United States. Dept. of Agriculture); no. 635

"This bulletin contains the result of a study carried on in the summer of 1913 by the Office of Farm Management to determine the value of that part of the farmer's living which is furnished directly by the farm. The data presented concern the food products, fuel, and the use of the farmhouse. Figures are also given showing the value of the food and fuel bought, the value of which becomes important when considered in relation to the quantity furnished by the farm." -- p.