Walker, C. R. (1962). Modern technology and civilization: An introduction to human problems in the machine age. McGraw-Hill Book.
Chicago-čujuhus (17. p.)Walker, Charles R. Modern Technology and Civilization: An Introduction to Human Problems in the Machine Age. New York: McGraw-Hill Book, 1962.
MLA-čujuhus (9. p.)Walker, Charles R. Modern Technology and Civilization: An Introduction to Human Problems in the Machine Age. McGraw-Hill Book, 1962.
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