sack, k., & linsel, h. (1965). contents and measuring of labour productivity in socialist industry. the institute of national planning.
Cita Chicago (17th ed.)sack, kurt, i hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. cairo: the institute of national planning, 1965.
Cita MLA (9th ed.)sack, kurt, i hermann linsel. Contents and Measuring of Labour Productivity in Socialist Industry. the institute of national planning, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.