Appraising educational research : a case study approach / [comp.] Jason Millman. - Englewood Cliffs [E.U.A.] : Prentice-Hall, 1974. - 186 p. - Prentice-Hall series in educational measurement, research and statistics . ISBN: 0130436380 Encabezamiento--Tema: Educación--InvestigaciónEducación