000 00393cam a22001217a 4500
008 180718b1958 xxu||||| |||| 00| 0 eng d
082 _aP83 Un3
245 _aAdult education groups and audio-visual techniques
_cby UNESCO, United Nation
260 _aParis
_bPlace-De Fonteny
_c1958
300 _a35p
440 _aReports and papers on Mass Communication No,25
700 _aUnited Nation. UNESCO
999 _c494933
_d494933