Educational research :
Gay, L.R.
Educational research : competencies for analysis and application / L.R. Gay. - 3rd.ed. - Columbus : Merrill, c1987. - xix,569 p. : ill.
Includes index.
0029461170
Education--Evaluation.
Education--Research.
LB 2326.3 / .G39
Educational research : competencies for analysis and application / L.R. Gay. - 3rd.ed. - Columbus : Merrill, c1987. - xix,569 p. : ill.
Includes index.
0029461170
Education--Evaluation.
Education--Research.
LB 2326.3 / .G39