Riegel, J. W. (1937). Wage determination. Bureau of industrial relations, University of Michigan.
Lua i Stíl Chicago (17ú heag.)Riegel, John Wallace. Wage Determination. Ann Arbor: Bureau of industrial relations, University of Michigan, 1937.
Lua MLA (9ú heag.)Riegel, John Wallace. Wage Determination. Bureau of industrial relations, University of Michigan, 1937.
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