Perry, J. W. (1961). Scientific Russian: A textbook for classes and self-study (2d ed.). Interscience Pub.
Citace podle Chicago (17th ed.)Perry, James Whitney. Scientific Russian: A Textbook for Classes and Self-study. 2d ed. New York: Interscience Pub, 1961.
Citace podle MLA (9th ed.)Perry, James Whitney. Scientific Russian: A Textbook for Classes and Self-study. 2d ed. Interscience Pub, 1961.
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