International Confederation of Free Trade Unions (ICFTU). (1988). The challenge of change: Report of the 14th ICTFU World Congress on the tasks ahead for the International Free trade Union Movement. Brussels: ICFTU.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Confederation of Free Trade Unions (ICFTU). The Challenge of Change: Report of the 14th ICTFU World Congress on the Tasks Ahead for the International Free Trade Union Movement. Brussels: ICFTU, 1988.
Παραπομπή σε μορφή MLA (8th εκδ.)International Confederation of Free Trade Unions (ICFTU). The Challenge of Change: Report of the 14th ICTFU World Congress on the Tasks Ahead for the International Free Trade Union Movement. Brussels: ICFTU, 1988.
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