000 00286nam a2200097Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aSidana (Ashok Kumar) Sidana (Kiran)
245 0 _aVigyan Shikshan (Vishayvastu Avam Shikshan Vidiya)
260 _bShiksha Prakashan
942 _2ddc
_cBED
999 _c21491
_d21491