horn, k. h. (1967). structural changes and productivity. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)horn, karl heinz. Structural Changes and Productivity. cairo: the institute of national planning, 1967.
Tohutoro MLA (9th ed.)horn, karl heinz. Structural Changes and Productivity. the institute of national planning, 1967.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.