Cita APA (7th ed.)

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.