APA (7e ed.) Bronvermelding

sack, k., & linsel, h. (1965). contents and measuring of labour productivity in socialist industry. the institute of national planning.

Chicago (17e ed.) Bronvermelding

sack, kurt, en hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. cairo: the institute of national planning, 1965.

MLA (9e ed.) Bronvermelding

sack, kurt, en hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. the institute of national planning, 1965.

Let op: Deze citaties zijn niet altijd 100% accuraat.