Gay, L. (1987). Educational research: Competencies for analysis and application (3rd.ed.). Merrill.
Chicago-referens (17:e uppl.)Gay, L.R. Educational Research: Competencies for Analysis and Application. 3rd.ed. Columbus: Merrill, 1987.
MLA-referens (9:e uppl.)Gay, L.R. Educational Research: Competencies for Analysis and Application. 3rd.ed. Merrill, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.