sack, k., & linsel, h. (1965). contents and measuring of labour productivity in socialist industry. the institute of national planning.
Chicago-referens (17:e uppl.)sack, kurt, och hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. cairo: the institute of national planning, 1965.
MLA-referens (9:e uppl.)sack, kurt, och hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. the institute of national planning, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.