3[5]Adrian Collins.The Use and Abuse of History[M].New York:Indianapolis and New York,1957:37-38.
4[7]Katz,E.,M.Gurevitch,H.Hass.On the use of the mass media for important things[C]// E.P.Thompson.American Sociological Review(38).New York:New York Press,1971:164-181.
