000 00260nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aGUPTA R K & ARYA J P
245 _aKRISHNA`S I I T MATHEMATICS
250 _a3
260 _c1994
_bKRISHNA PRAKASHAN MANDIR
999 _c21233
_d21233