Creswell, John W.

Research Design : qualitative, quantitative, and mixed methods approaches / by John W Creswell. - 3rd ed. - New Delhi : Sage, c2009. - xxix,260p. : ill. ; 24 cm.

Includes bibliographical references and index.

9781412965569 9781412965576


Social sciences--Research--Methodology.
Social sciences--Statistical methods
Social service--Research--Methodology

300.72 / CRR