TOLZ, V. (1990). The USSR in 1989: A Record of Events. Westview.
Chicago-čujuhus (17. p.)TOLZ, Vera. The USSR in 1989: A Record of Events. Boulder: Westview, 1990.
MLA-čujuhus (9. p.)TOLZ, Vera. The USSR in 1989: A Record of Events. Westview, 1990.
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