Fisher, W. E., & Bezanson, A. (1932). Wage rates and working time in the bituminous coal industry, 1912-1922: With a summary of rates for separate occupations in each coal district in the United States. University of Pennsylvania Press.
Cita Chicago Style (17a ed.)Fisher, Waldo E., y Anne Bezanson. Wage Rates and Working Time in the Bituminous Coal Industry, 1912-1922: With a Summary of Rates for Separate Occupations in Each Coal District in the United States. Philadelphia: University of Pennsylvania Press, 1932.
Cita MLA (8a ed.)Fisher, Waldo E., y Anne Bezanson. Wage Rates and Working Time in the Bituminous Coal Industry, 1912-1922: With a Summary of Rates for Separate Occupations in Each Coal District in the United States. University of Pennsylvania Press, 1932.