United States. Dept. of Agriculture. Economic Research Service. Economic Development Division.
Characteristics of U.S. rural areas with noncommuting population
Farm Operator Level-of-Living Indexes For Counties of the United States, 1950, 1959 and 1964
Supplement to Age of Transition
The economic and social condition of nonmetropolitan America in the 1970's
The economic and social condition of rural America in the 1970's