000 00294nam a2200109Ia 4500
008 250604s9999 xx 000 0 und d
100 _aDubey, S.K.
245 0 _aDrashthi Badhit Vidhyarthiyon ki Samsyae aur Unke liye Sujhab
260 _bAgrawal Pub.
_aAgra
_c2013
300 _a643
942 _cBK
999 _c19389
_d19389