000 00286nam a2200121Ia 4500
008 220201s1973 xx 000 0 eng d
082 _bHOR
100 _aHorn George F.
245 0 _aVisual Communication
260 _aWorcester
_bDavis publication
_c1973
300 _a95
942 _2ddc
999 _c21989
_d21989