Vooys, I. P. d. (1923). Labour legislation and economic possibilities. International Labour Organization.
Cita Chicago Style (17a ed.)Vooys, Is. P. de. Labour Legislation and Economic Possibilities. International Labour Organization, 1923.
Cita MLA (9a ed.)Vooys, Is. P. de. Labour Legislation and Economic Possibilities. International Labour Organization, 1923.
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