Practical Russian (3rd ed.). Progress.
Chicago-viite (17. p.)Practical Russian. 3rd ed. Moscow: Progress.
MLA-viite (9. p.)Practical Russian. 3rd ed. Progress.
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Practical Russian (3rd ed.). Progress.
Chicago-viite (17. p.)Practical Russian. 3rd ed. Moscow: Progress.
MLA-viite (9. p.)Practical Russian. 3rd ed. Progress.