(2006). Degree Completions in Areas of National Need, 1996-97 to 2001-02. U.S. Department of Education.
Chicago-referens (17:e uppl.)Degree Completions in Areas of National Need, 1996-97 to 2001-02. U.S. Department of Education, 2006.
MLA-referens (9:e uppl.)Degree Completions in Areas of National Need, 1996-97 to 2001-02. U.S. Department of Education, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.