Clarke, A. C. (1992). How the world was one: Beyond the global village. Bantam Books.
Chicago-viite (17. p.)Clarke, Arthur C. How the World Was One: Beyond the Global Village. New York: Bantam Books, 1992.
MLA-viite (9. p.)Clarke, Arthur C. How the World Was One: Beyond the Global Village. Bantam Books, 1992.
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