sack, K., & linsel, h. (1966). planning of technical progress in industry: Planning of introducing new technique into production. the institute of national planning.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)sack, K., ба hermann linsel. Planning of Technical Progress in Industry: Planning of Introducing New Technique into Production. cairo: the institute of national planning, 1966.
MLA -ийн эшлэл (9 дэх хэвлэлт)sack, K., ба 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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