Gay, L. (1980). Educational evaluation & measurement: Competencies for analysis and application. Charles E.Merrill.
Chicago-referens (17:e uppl.)Gay, L.R. Educational Evaluation & Measurement: Competencies for Analysis and Application. Columbus: Charles E.Merrill, 1980.
MLA-referens (9:e uppl.)Gay, L.R. Educational Evaluation & Measurement: Competencies for Analysis and Application. Charles E.Merrill, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.