000 00270nam a2200121Ia 4500
100 _aR L Gregory
020 _a0-297-00476-X
942 _cBK
245 _aThe Intelligent eye
260 _aWeidenfeld & Nicolson, London
_c1971
082 _a152.1 Gre
300 _a191p ill.
999 _c1422
_d1422