Não informado. (1972). Utilitas mathematica. University of Manitoba, Department of Computer Science.
Chicago-referens (17:e uppl.)Não informado. Utilitas Mathematica. Winnipeg, Canada: University of Manitoba, Department of Computer Science, 1972.
MLA-referens (8:e uppl.)Não informado. Utilitas Mathematica. University of Manitoba, Department of Computer Science, 1972.
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