APA استشهاد

Gorbachev, M. (1988). Perestroika new thinking for our country and the world.

استشهاد بنمط شيكاغو

Gorbachev, Mickhail. Perestroika New Thinking for Our Country and the World. London, Withan Collins sons, 1988.

MLA استشهاد

Gorbachev, Mickhail. Perestroika New Thinking for Our Country and the World. 1988.