Costa, D. L. (1998). Hours of work and the fair labor standards act: A study of retail and wholesale trade, 1938-1950. National Bureau of Economic Research.
Chicagoスタイル(17版)引用形式Costa, Dora L. Hours of Work and the Fair Labor Standards Act: A Study of Retail and Wholesale Trade, 1938-1950. Cambridge: National Bureau of Economic Research, 1998.
MLA(9版)引用形式Costa, Dora L. Hours of Work and the Fair Labor Standards Act: A Study of Retail and Wholesale Trade, 1938-1950. National Bureau of Economic Research, 1998.
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