000 00246nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aP91.3 .T74 2011
100 _aTREADWELL,DONALD
245 0 _aINTRODUCING COMMUNICATION RESEARCH
942 _cBK
999 _c172842
_d172842