000 00256nam a2200109Ia 4500
008 211209s1955 xx 000 0 und d
041 _aeng
082 _a515.63 N55 WEA
100 _aWEALTH ERBURN C E
245 _aELEMENTARY VECTOR ANALYSIS
260 _c1955
999 _c1756
_d1756