APA (7e ed.) Bronvermelding

(2007). Nation's Report Card: Civics 2006. U.S. Department of Education.

Chicago (17e ed.) Bronvermelding

Nation's Report Card: Civics 2006. U.S. Department of Education, 2007.

MLA (9e ed.) Bronvermelding

Nation's Report Card: Civics 2006. U.S. Department of Education, 2007.

Let op: Deze citaties zijn niet altijd 100% accuraat.