stregl, p. K. (1965). the new progressive changes in planned management of the national economy experimented in the present time in czechoslovaia. National Planning Institute.
Tohutoru Kātū Chicago (17th ed.)stregl, prof. K. The New Progressive Changes in Planned Management of the National Economy Experimented in the Present Time in Czechoslovaia. cairo: National Planning Institute, 1965.
Tohutoro MLA (9th ed.)stregl, prof. K. The New Progressive Changes in Planned Management of the National Economy Experimented in the Present Time in Czechoslovaia. National Planning Institute, 1965.
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