TY  - BOOK
AU  - McLuhan,Marshall
TI  - Understanding media: the extensions of man 
SN  - 0262631598 :
PY  - 1994///
CY  - Cambridge, Mass.
PB  - MIT Press
KW  - Communication and technology
KW  - Communication
KW  - Mass media
N1  - Includes bibliographical references (p. 361-365)
ER  -