sach, k., & linsel, h. (1965). management in socialist industry and enterprises. National Planning Institute.
Chicago-referens (17:e uppl.)sach, kurt, och hermann linsel. Management in Socialist Industry and Enterprises. cairo: National Planning Institute, 1965.
MLA-referens (9:e uppl.)sach, kurt, och hermann linsel. Management in Socialist Industry and Enterprises. National Planning Institute, 1965.