000 00320nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c100
040 _aET
100 _aMANGAL S.K.
245 0 _aSADHARAN VIGYAN SHIKSHAN
260 _bARYA BOOK DEPOT
_aNEW DELHI
300 _a256
500 _a66963
942 _cBK
999 _c72926
_d72926