(2007). Nation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education.
Chicago (17e ed.) BronvermeldingNation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education, 2007.
MLA (9e ed.) BronvermeldingNation's Report Card: Mathematics 2003 & 2005 Performance in Puerto Rico - Highlights. U.S. Department of Education, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.