Gorbachev, M. S. (1988). Bringing out the potential of socialism more fully: Speech by the General Secretary of the CPSU Central Committee in the Sejm of the Polish People's Republic : Warsaw, July 11, 1988. Novosti Press Agency Pub. House.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGorbachev, Mikhail Sergeevich. Bringing Out the Potential of Socialism More Fully: Speech by the General Secretary of the CPSU Central Committee in the Sejm of the Polish People's Republic : Warsaw, July 11, 1988. Novosti Press Agency Pub. House, 1988.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিGorbachev, Mikhail Sergeevich. Bringing Out the Potential of Socialism More Fully: Speech by the General Secretary of the CPSU Central Committee in the Sejm of the Polish People's Republic : Warsaw, July 11, 1988. Novosti Press Agency Pub. House, 1988.