Beth, T., & Beth, T. J. (1993). Design theory. Cambridge University Press.
Chicago Edition CitationBeth, Thomas, and Thomas; Jungnickel Beth. Design Theory. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1993.
MLA Edition CitationBeth, Thomas, and Thomas; Jungnickel Beth. Design Theory. Cambridge University Press, 1993.
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