APA

National Center for Education Statistics, .Private school universe survey. Washington,D.C: U.S. Dept. of Education, Office of Educational Research and Improvement, National Center for Educstion Statistics.

Chicago

National Center for Education Statistics, .Private school universe survey. Washington,D.C: U.S. Dept. of Education, Office of Educational Research and Improvement, National Center for Educstion Statistics.

Harvard

National Center for Education Statistics, .Private school universe survey. Washington,D.C: U.S. Dept. of Education, Office of Educational Research and Improvement, National Center for Educstion Statistics.

MLA

National Center for Education Statistics, .Washington,D.C: U.S. Dept. of Education, Office of Educational Research and Improvement, National Center for Educstion Statistics. .