International Labour Office. (1968). Social problems in the construction industry arising out of the industrialisation of developing countries. Third item on the Agenda. Geneva: International Labor Organization. Building, Civil Engineering and Public Works Committee.
استشهاد بنمط شيكاغوInternational Labour Office. Social Problems in the Construction Industry Arising Out of the Industrialisation of Developing Countries. Third Item On the Agenda. Geneva: International Labor Organization. Building, Civil Engineering and Public Works Committee, 1968.
MLA استشهادInternational Labour Office. Social Problems in the Construction Industry Arising Out of the Industrialisation of Developing Countries. Third Item On the Agenda. Geneva: International Labor Organization. Building, Civil Engineering and Public Works Committee, 1968.