000 00324nam a2200097Ia 45e0
008 181001s1968 xx 000 0 und d
100 _aGraham F.
245 0 _aAudels N.E.L. A.C. principles and diagrams
260 _bTaraparavalla
_c1968
942 _2ddc
_cBK
999 _c544
_d544