Rorvik, D. (1971). As man becomes machine: The next step in evolution. London: Souvenir Press.
Čikaški stil citiranjaRorvik, David. As Man Becomes Machine: The Next Step in Evolution. London: Souvenir Press, 1971.
MLA način citiranjaRorvik, David. As Man Becomes Machine: The Next Step in Evolution. London: Souvenir Press, 1971.
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