Research design :
Creswell, John W.
Research design : qualitative, quantitative, and mixed methods approaches / John W. Creswell. - 3rd ed. - Thousand Oaks : Sage Publications, c2009. - xxix, 260 p.
Bibliogr.: p. 237-245.
9781412965569 (cloth) 141296556X (cloth) 9781412965576 (pbk.) 1412965578 (pbk.)
2008006242
H62 / .C6963 2009
300.72
Research design : qualitative, quantitative, and mixed methods approaches / John W. Creswell. - 3rd ed. - Thousand Oaks : Sage Publications, c2009. - xxix, 260 p.
Bibliogr.: p. 237-245.
9781412965569 (cloth) 141296556X (cloth) 9781412965576 (pbk.) 1412965578 (pbk.)
2008006242
H62 / .C6963 2009
300.72