Production of distribution transformers in developing countries. [Prepared by K. Rothaler] Rothaler, K. United Nations Industrial Development Organization. Electric transformers Design and construction. Production planning. JX1977 .A2 ID/34 338.476213 UNP "United Nations publication. Sales no.: E.70.II.B.11." At head of title: United Nations Industrial Development Organization, Vienna. New York, United Nations, 1970. 1970. 1970 Text 58 p. eng