ROBERTS , E. (1996). FOCUS ON RUSSIA.
Cita Chicago (17th ed.)ROBERTS , ELIZABET. FOCUS ON RUSSIA. 1996.
Cita MLA (9th ed.)ROBERTS , ELIZABET. FOCUS ON RUSSIA. 1996.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)