Mertens, D. M. (2013). Mixed Methods and Credibility of Evidence in Evaluation: New Directions for Evaluation, Number 138. John Wiley & Sons, Incorporated.
Chicago-Zitierstil (17. Ausg.)Mertens, Donna M. Mixed Methods and Credibility of Evidence in Evaluation: New Directions for Evaluation, Number 138. Somerset: John Wiley & Sons, Incorporated, 2013.
MLA-Zitierstil (9. Ausg.)Mertens, Donna M. Mixed Methods and Credibility of Evidence in Evaluation: New Directions for Evaluation, Number 138. John Wiley & Sons, Incorporated, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.