APA (7th ed.) Citation

Costa, D. L. (1998). The Wage and the Length of the Work Day: From the 1890s to 1991. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Costa, Dora L. The Wage and the Length of the Work Day: From the 1890s to 1991. National Bureau of Economic Research, 1998.

MLA (9th ed.) Citation

Costa, Dora L. The Wage and the Length of the Work Day: From the 1890s to 1991. National Bureau of Economic Research, 1998.

Warning: These citations may not always be 100% accurate.