000 00315nam a2200121Ia 4500
008 170101s2007 xx 000 0 und d
082 _aHI 535.03 P14L
100 _aPandey, Prithwi Nath
245 0 _aLight and rays encyclopedia
260 _aAIlahabad
_bVibha Prakashan
_c2007
300 _a246
942 _2ddc
_cHI
999 _c136007
_d136007