Foerster, H. v. Circular Causality: The beginnings of an epistemology of responsibility / Heinz von Foerster. Transactions=Protokolle.(2003).
Chicago-viite (17. p.)Foerster, Heinz von. "Circular Causality: The Beginnings of an Epistemology of Responsibility / Heinz Von Foerster." Transactions=Protokolle.(2003) .
MLA-viite (8. p.)Foerster, Heinz von. "Circular Causality: The Beginnings of an Epistemology of Responsibility / Heinz Von Foerster." Transactions=Protokolle.(2003), .
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