(1957). ILO productivity missions to underdeveloped countries: I. International Labour Organization.
Citazione stile Chigago Style (17a edizione)ILO Productivity Missions to Underdeveloped Countries: I. International Labour Organization, 1957.
Citatione MLA (9a ed.)ILO Productivity Missions to Underdeveloped Countries: I. International Labour Organization, 1957.
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