000 00287nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a371.335 W3V4
100 _aWeavor, G.G.
245 0 _aViksual Aids
260 _aNew Jersey
_bD,.Van Nostrand
_c1947
300 _a388p.
942 _2ddc
999 _c19853
_d19853