000 00244nam a2200109Ia 4500
008 160710s1953 xx 000 0 und d
100 _aBARTON, A W
245 _aTEXT BOOK ON LIGHT
260 _bLONGMEN
_c1953
300 _a426
942 _2ddc
_cB
999 _c16125
_d16125