000 00263nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aVasishtha (AR) and Gupta (RK)
245 0 _aDynamic
260 _bkrishna
260 _c1992
365 _b45
942 _cBK
999 _c216504
_d216504