Não informado. (1958). Industrialization and Productivity. United Nations, Department of Economic and Social Affairs.
Chicago-viite (17. p.)Não informado. Industrialization and Productivity. New York: United Nations, Department of Economic and Social Affairs, 1958.
MLA-viite (8. p.)Não informado. Industrialization and Productivity. United Nations, Department of Economic and Social Affairs, 1958.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.