000 00365nam a2200145Ia 4500
008 240201s1978 xx 000 0 eng d
020 _a0486235491
082 _a745.4 TUR
100 _aTURNER, HARRY
245 0 _aTRIAD OPTICAL ILLUSIONS AND HOW TO DESIGN THEM
260 _bDOVER PUBLICATIONS INC.,
_c1978
300 _a30
650 _aDESIGN
942 _2ddc
_cBK
999 _c5492
_d5492