000 00316nam a2200109Ia 4500
008 250219s9999 xx 000 0 und d
020 _a9781071817940
100 _aJohn W. Creswell
_910303
245 0 _aResearch Design: Qualitative, Quantitative, and Mixed Methods Approaches
260 _bSAGE
260 _c6th ed./ 2022
999 _c5638
_d5638