000 00331nam a2200133Ia 4500
008 161118s2016 xx 000 0 und d
082 _a370.78 VAN-U
100 _aVan Dalen Deobold B.
245 0 _aUnderstanding Eduational Research
250 _a3rd.
260 _aNew York
_bMcGraw-Hill
_c1973
300 _a532p.
942 _2ddc
999 _c13267
_d13267