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