Lua APA (7ú heag.)
GORBACHEV, M. (1987). Perestroika: New thinking for our country and the World. Harper & Row.
Lua i Stíl Chicago (17ú heag.)
GORBACHEV, Mikhail. Perestroika: New Thinking for Our Country and the World. New York: Harper & Row, 1987.
Lua MLA (9ú heag.)
GORBACHEV, Mikhail. Perestroika: New Thinking for Our Country and the World. Harper & Row, 1987.
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