000 00266nam a2200109Ia 4500
008 240625s9999 xx 000 0 und d
041 _aeng
082 _a515.625 KEL
100 _aKELLEY WALTER G
245 _aDIFFERENCE EQUATIONS AN INTRODUCTION WIT
260 _c2006
999 _c38299
_d38299