Gay, L. R.

Educational research : competencies for analysis and applications / L.R. Gay, Geoffrey E. Mills, Peter W. Airasian. - 9th ed. - Upper Saddle River, N. J. : Pearson, 2009. - xvi, 618 p. : ill.; charts, photos., graphs

Includes bibliographical references

0132338777


Education--Research

LB1028 G63 2009