hansen, b. (1962). output- productivity and value added- productivity. the institute of national planning.
Citazione stile Chigago Style (17a edizione)hansen, bent. Output- Productivity and Value Added- Productivity. cairo: the institute of national planning, 1962.
Citatione MLA (9a ed.)hansen, bent. Output- Productivity and Value Added- Productivity. the institute of national planning, 1962.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.