Kostomarov, V. (1992). Russian for everybody: Textbook (6th ed.). Russky Yazyk.
Lua i Stíl Chicago (17ú heag.)Kostomarov, V. Russian for Everybody: Textbook. 6th ed. Moscow: Russky Yazyk, 1992.
Lua MLA (9ú heag.)Kostomarov, V. Russian for Everybody: Textbook. 6th ed. Russky Yazyk, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.