TY - BOOK T1 - Understanding media : the extensions of man T2 - Routledge Classics A1 - McLuhan, Marshall 1911-1980 LA - Spanish PP - London PB - Routledge YR - 2001 UL - https://colectivo.uloyola.es/Record/L92239 OP - 392 SN - 9780415253970 KW - Medios de comunicación social ER -