horn, k. h. (1967). structural changes and productivity. the institute of national planning.
Cita Chicago Style (17a ed.)horn, karl heinz. Structural Changes and Productivity. cairo: the institute of national planning, 1967.
Cita MLA (9a ed.)horn, karl heinz. Structural Changes and Productivity. the institute of national planning, 1967.
Precaución: Estas citas no son 100% exactas.