TY  - BOOK
AU  - McLuhan, Marshall
TI  - Understanding media: the extentions of man
SN  - 9780415255493
SN  - 201094286
U1  - 302.23 MCL 
PY  - 1964///
CY  - New York
PB  - Routledge
KW  - Communication
KW  - Communication and technology
KW  - Mass media
ER  -