McLuhan, Marshall, 1911-1980. Understanding media : The extensions of man / By Marshall McLuhan. - [1st ed.] - New York : McGraw-Hill Book Company, [1964]. - vii, 359 p. ; 22 cm. - 301.2 . Subjects--Topical Terms: CommunicationCommunication and trafficTechnology and civilization Dewey Class. No.: 301.2