planning, conducting, and evaluating quantitative and qualitative research Creswell, John W. creator author. Guetterman, Timothy C. author. us United States Pearson 2019 sixth edition. eng xxii, 655 pages. An introduction to educational of research -- The steps in the process of research -- Research designs. John W. Creswell ; Timothy C. Guetterman. Education - Research - Methodology nvestigación educativa Metodología 9780134519364 clrauoh 250904 20260325160305.0 u7483 eng