TY  - BOOK
AU  - McLuhan,Marshall
TI  - Understanding media: the extensions of man 
U1  - 301.2 
PY  - 1964/// [impression 1967]
CY  - London
PB  - Routledge & Kegan Paul ltd.
KW  - Mass media
KW  - Communication
KW  - Communication and technology
ER  -