Charles, C. M.
Introduction to educational research /
C.M. Charles, Craig A. Mertler.
- 4th ed.
- Boston : Allyn and Bacon, 2002.
- xxiii, 392 p. : ill ; 25 cm.
Includes bibliographical references and indexes.
0321081757 (alk. paper)
2001022425
Education--Research.
370/.7/2