Cita APA

Cowhig, J. D. (1965). Urban and rural levels of living, 1960. Economic Research Service, U.S. Dept. of Agriculture.

Citación estilo Chicago

Cowhig, James D. Urban and Rural Levels of Living, 1960. Washington: Economic Research Service, U.S. Dept. of Agriculture, 1965.

Cita MLA

Cowhig, James D. Urban and Rural Levels of Living, 1960. Economic Research Service, U.S. Dept. of Agriculture, 1965.