International Conference on Systems Science Wrocław. (1981). Systems Science VII: International Conference on Systems Science, Wrocław, Sempember 15-18, 1981 : abstracts of papers. Wydawnictwo Politechniki Wrocławskiej.
Citazione stile Chigago Style (17a edizione)International Conference on Systems Science Wrocław. Systems Science VII: International Conference on Systems Science, Wrocław, Sempember 15-18, 1981 : Abstracts of Papers. Wrocław: Wydawnictwo Politechniki Wrocławskiej, 1981.
Citatione MLA (9a ed.)International Conference on Systems Science Wrocław. Systems Science VII: International Conference on Systems Science, Wrocław, Sempember 15-18, 1981 : Abstracts of Papers. Wydawnictwo Politechniki Wrocławskiej, 1981.
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