Research design : qualitative & quantitative approaches /
John W. Creswell.
- Thousand Oaks, CA : Sage Publications, c1994.
- xix, 228 p. : ill. ; 23 cm.
Includes bibliographical references (p. 209-216) and indexes.
0803952546 0803952554 (pbk.)
94004236
Social sciences--Research--Methodology. Social sciences--Statistical methods.