000 00405nam a2200145Ia 4500
008 170101s1949 xx 000 0 und d
041 _aEnglish
082 _aGN371.33W379V
100 _aWEAVER
245 0 _aVISUAL AIDS THEIR CONSTRUCTION AND USE
260 _aLONDON
_bD.VAN NOSTRAND COMPAY INC.
_c1949
300 _a388
_ePrint
653 _aVISUAL AIDS THEIR CONSTRUCTION AND USE
942 _2ddc
_cBK
999 _c330242
_d330242