Não informado. (1976). Educational Research Quarterly. University of Southern California, School of Education.
Chicago-referens (17:e uppl.)Não informado. Educational Research Quarterly. Los Angeles, Calif: University of Southern California, School of Education, 1976.
MLA-referens (8:e uppl.)Não informado. Educational Research Quarterly. University of Southern California, School of Education, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.