Marshall McLuhan and the extensions of man / Theodore A. Wertime.
Note:
A proposito di: The Gutenberg galaxy : the making of typographic man / Marshall McLuhan. [Toronto] : University of Toronto press, [1962]; e di Understanding media : the extensions of man / Marshall McLuhan. New York : McGraw-Hill, [1964]
Technology and culture Vol. 7 (1966), p. 504-510