Harel, D., & David Harel. (2000). Computers Ltd: What they really can't do. Oxford, [England],New York: Oxford University Press.
Chicago-tyylinen lähdeviittausHarel, David, ja David Harel. Computers Ltd: What They Really Can't Do. Oxford, [England],New York: Oxford University Press, 2000.
MLA-viiteHarel, David, ja David Harel. Computers Ltd: What They Really Can't Do. Oxford, [England],New York: Oxford University Press, 2000.
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