Gorbachev, M. S. (1987). Mikhail Gorbachev: : for the sake of preserving human civilisation: speech before the participants in the international forum "For a nuclear-free world, for the survival of humanity", Moscow, February 16, 1987. Moscow: Novosti Press Agency Publishing House.
Παραπομπή Chicago StyleGorbachev, Mikhail Sergeevich. Mikhail Gorbachev: : For the Sake of Preserving Human Civilisation: Speech Before the Participants in the International Forum "For a Nuclear-free World, for the Survival of Humanity", Moscow, February 16, 1987. Moscow: Novosti Press Agency Publishing House, 1987.
Παραπομπή MLAGorbachev, Mikhail Sergeevich. Mikhail Gorbachev: : For the Sake of Preserving Human Civilisation: Speech Before the Participants in the International Forum "For a Nuclear-free World, for the Survival of Humanity", Moscow, February 16, 1987. Moscow: Novosti Press Agency Publishing House, 1987.