Simon, G. (1921). Labour legislation in the Polish Republic. Sampson, Low, Marston & Co, Ltd..
Cita Chicago Style (17a ed.)Simon, Gustaw. Labour Legislation in the Polish Republic. London ; Edinburgh: Sampson, Low, Marston & Co, Ltd., 1921.
Cita MLA (9a ed.)Simon, Gustaw. Labour Legislation in the Polish Republic. Sampson, Low, Marston & Co, Ltd., 1921.
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