Laszlo, E. (1972). The Relevance of General Systems Theory: Papers Presented to Ludwig von Bertalanffy an His Seventieth Birthday. New York: George Braziller.
Chicago-tyylinen lähdeviittausLaszlo, Ervin. The Relevance of General Systems Theory: Papers Presented to Ludwig Von Bertalanffy an His Seventieth Birthday. New York: George Braziller, 1972.
MLA-viiteLaszlo, Ervin. The Relevance of General Systems Theory: Papers Presented to Ludwig Von Bertalanffy an His Seventieth Birthday. New York: George Braziller, 1972.
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