Babbage, C., & Hyman, A. (1989). Science and reform: Selected works of Charles Babbage. Cambridge New York: Cambridge University Press.
Παραπομπή Chicago StyleBabbage, Charles, and Anthony Hyman. Science and Reform: Selected Works of Charles Babbage. Cambridge New York: Cambridge University Press, 1989.
Παραπομπή MLABabbage, Charles, and Anthony Hyman. Science and Reform: Selected Works of Charles Babbage. Cambridge New York: Cambridge University Press, 1989.
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