000 00308nam a2200109Ia 45e0
008 181001s1969 xx 000 0 und d
100 _aVasudeva D.N.
245 2 _aA textbook of Light
260 _bKishore Pub.Delhi
_c1969
300 _a642
942 _2ddc
_cBK
999 _c1066
_d1066