Brecht, R. (1991). Vision Russia one. Brecht.
Cita Chicago (17th ed.)Brecht, Rainer. Vision Russia One. Ludwigshafen/Rhein: Brecht, 1991.
Cita MLA (8th ed.)Brecht, Rainer. Vision Russia One. Brecht, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.