TY - BOOK AU - Creswell,John W. TI - Research design: qualitative, quantitative, and mixed methods approaches SN - 9781412965569 (cloth) AV - H62 .C6963 2009 U1 - 300.72 CRE 22 PY - 2009/// CY - Thousand Oaks, Calif. PB - Sage Publications KW - Social sciences KW - Research KW - Methodology KW - Statistical methods N1 - Includes bibliographical references (p. 237-245) and indexes UR - http://www.loc.gov/catdir/toc/ecip0810/2008006242.html ER -