GILBERT, M. (1972). Russian history atlas. Weldenfeld and Nicolson.
Lua i Stíl Chicago (17ú heag.)GILBERT, Martin. Russian History Atlas. Weldenfeld and Nicolson, 1972.
Lua MLA (9ú heag.)GILBERT, Martin. Russian History Atlas. Weldenfeld and Nicolson, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.