00450nam a22001217a 450000500170000002000240001708200170004110000220005824500240008026000350010430000350013965001540017420260825161845.0  a9780415253970 (pbk)  a302.234bMCL  aMcLuhan, Marshall  aUnderstanding media  aUnited KingdombNew Yorkc1964  avi, 392 p.b: ill.c; 19.8 cm.  aLiteratureaDigital MarketingvOverheated mediumvMechanical bridevHybrid energyvExtended skinvPaper routesvTribal drumvNews leakvGeneral books