000 00282nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
245 0 _aVisual problems of colour: Voo.2
250 _a2
260 _bH.M.S.O.
_aLondon
_c1958
942 _c1
999 _c98110
_d98110