APA

National Center for Education Statistics, . (2001). The condition of education in brief. Washington,D.C: National Center for Education Statistics, U.S. Dept.off Education, Office of Educational Research and Improvement.

Chicago

National Center for Education Statistics, . 2001. The condition of education in brief. Washington,D.C: National Center for Education Statistics, U.S. Dept.off Education, Office of Educational Research and Improvement.

Harvard

National Center for Education Statistics, . (2001). The condition of education in brief. Washington,D.C: National Center for Education Statistics, U.S. Dept.off Education, Office of Educational Research and Improvement.

MLA

National Center for Education Statistics, . The condition of education in brief. Washington,D.C: National Center for Education Statistics, U.S. Dept.off Education, Office of Educational Research and Improvement. 2001.