(2007). Nation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education.
Citazione stile Chigago Style (17a edizione)Nation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education, 2007.
Citatione MLA (9a ed.)Nation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.