Cita APA (7a ed.)
Senn, A., & Rozhdestvensky, A. A. Cortina's Russian in 20 Lesson. Garden City : R.D. Cortina.
Cita estilo Chicago (17a ed.)
Senn, Alfred, y Andrey A. Rozhdestvensky. Cortina's Russian in 20 Lesson. Nueva York, EUA: Garden City : R.D. Cortina.
Cita MLA (9a ed.)
Senn, Alfred, y Andrey A. Rozhdestvensky. Cortina's Russian in 20 Lesson. Garden City : R.D. Cortina.
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