International Labour Office & Sethuraman, S. V. (1981). The urban informal sector in developing countries: Employment, poverty and environment. International Labour Office.
Citace podle Chicago (17th ed.)International Labour Office a S. V. Sethuraman. The Urban Informal Sector in Developing Countries: Employment, Poverty and Environment. Geneva: International Labour Office, 1981.
Citace podle MLA (8th ed.)International Labour Office a S. V. Sethuraman. The Urban Informal Sector in Developing Countries: Employment, Poverty and Environment. International Labour Office, 1981.
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