Bobbitt, S. A., Johnson, F. H., & National Center for Education Statistics. (1990). Key statistics for public and private elementary and secondary education, school year 1990-91: Early estimates. National Center for Education Statistics, U.S. Dept. of Education, Office of Educational Research and Improvement.
Chicago Style (17th ed.) CitationBobbitt, Sharon A., Frank H. Johnson, and National Center for Education Statistics. Key Statistics for Public and Private Elementary and Secondary Education, School Year 1990-91: Early Estimates. [Washington, DC]: National Center for Education Statistics, U.S. Dept. of Education, Office of Educational Research and Improvement, 1990.
MLA (8th ed.) CitationBobbitt, Sharon A., et al. Key Statistics for Public and Private Elementary and Secondary Education, School Year 1990-91: Early Estimates. National Center for Education Statistics, U.S. Dept. of Education, Office of Educational Research and Improvement, 1990.