Não informado. (2003). Cybernetics and Human Knowing. Keith Sutherland.
Lua i Stíl Chicago (17ú heag.)Não informado. Cybernetics and Human Knowing. Thorverton, Inglaterra: Keith Sutherland, 2003.
Lua MLA (8ú heag.)Não informado. Cybernetics and Human Knowing. Keith Sutherland, 2003.
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