BERGSON, A. (1968). Planning and productivity under Soviet: Socialism. Carnegie-Mellon Univ..
Chicago-čujuhus (17. p.)BERGSON, Abram. Planning and Productivity Under Soviet: Socialism. New York: Carnegie-Mellon Univ., 1968.
MLA-čujuhus (9. p.)BERGSON, Abram. Planning and Productivity Under Soviet: Socialism. Carnegie-Mellon Univ., 1968.
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