(2000). Average Performance Scores for the Arts: 1997. U.S. Department of Education.
Chicago-referens (17:e uppl.)Average Performance Scores for the Arts: 1997. U.S. Department of Education, 2000.
MLA-referens (9:e uppl.)Average Performance Scores for the Arts: 1997. U.S. Department of Education, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.