(1991). Five Years That Shook The World Gorbachev's Unfinished Revolution Edited By Harley D Balzer. Wwestview Press.
Lua i Stíl Chicago (17ú heag.)Five Years That Shook The World Gorbachev's Unfinished Revolution Edited By Harley D Balzer. Wwestview Press, 1991.
Lua MLA (8ú heag.)Five Years That Shook The World Gorbachev's Unfinished Revolution Edited By Harley D Balzer. Wwestview Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.