Average Mathematics Scores of Public School Students in 4th-, & 8th- Grade.
Chicago-referens (17:e uppl.)Average Mathematics Scores of Public School Students in 4th-, & 8th- Grade.
MLA-referens (9:e uppl.)Average Mathematics Scores of Public School Students in 4th-, & 8th- Grade.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.