APA (7e ed.) Bronvermelding

(2000). Average Math & Science Performance Scores of 4th- Grade Students. U.S. Department of Education.

Chicago (17e ed.) Bronvermelding

Average Math & Science Performance Scores of 4th- Grade Students. U.S. Department of Education, 2000.

MLA (9e ed.) Bronvermelding

Average Math & Science Performance Scores of 4th- Grade Students. U.S. Department of Education, 2000.

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