000 00266nam a2200109Ia 4500
008 160710s1959 xx 000 0 und d
100 _aPITCHFORD,A.
245 _aSTUDIES IN GEOMETRICAL OPTICS
260 _aLONDON
_bMACDONALD
_c1959
300 _a221
942 _2ddc
_cB
999 _c29692
_d29692