000 00270nam a2200097Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aSidana (Ashok Kumar)
245 0 _aSamajeek Vigyan Vishayvastu Avam Shikshan Vidiyaa
260 _bShiksha Prakashan
942 _2ddc
_cBED
999 _c21797
_d21797