sack, K., & linsel, h. (1966). planning of technical progress in industry: Planning of introducing new technique into production. the institute of national planning.
Chicago-viite (17. p.)sack, K., ja hermann linsel. Planning of Technical Progress in Industry: Planning of Introducing New Technique into Production. cairo: the institute of national planning, 1966.
MLA-viite (9. p.)sack, K., ja hermann linsel. Planning of Technical Progress in Industry: Planning of Introducing New Technique into Production. the institute of national planning, 1966.
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