000 00251nam a2200109Ia 4500
008 230416s9999||||xx |||||||||||||| ||und||
050 _aQ180.A1 N57 1965
100 _aNoltingk, B. E.
245 4 _aThe art of research;
260 _c1965
942 _2lcc
_cBK
999 _c770
_d770