000 00333nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0803939051
082 _a303.4833 R598
100 _aRITCHIE,L.D
245 0 _aCOMMUNICATION CONCEPTS 2
260 _aNEWBURG PARK
_bSage Publication
_c1991
300 _a23X13
942 _cBK
_2DDC
999 _c25129
_d25129