TY - BOOK AU - McLuhan, Marshall TI - Understanding media : : the extensions of man SN - 9781138370340 U1 - 301.2 PY - 2023/// CY - London PB - Routledge KW - Communication KW - Technology and civilization KW - Communication and traffic KW - Mass Media KW - Communication and technology KW - Mass media and music KW - Social Aspects KW - Communication and culture ER -