TY - BOOK AU - McLuhan TI - Understanding media: the extensions of man SN - 9780415253970 (pbk) U1 - 301.2 PY - 2008/// CY - New York PB - Atlantic KW - Social science KW - Interpersonal communication KW - Technology and civilization KW - Communication and traffic KW - Communication KW - FSSH N1 - Includes index ER -