National Center for Education Statistics (U.S.). Education in the United States: Statistical highlights. Dept. of Health, Education, and Welfare, Education Division, National Center for Education Statistics.
Style de citation Chicago (17e éd.)National Center for Education Statistics (U.S.). Education in the United States: Statistical Highlights. [Washington]: Dept. of Health, Education, and Welfare, Education Division, National Center for Education Statistics.
Style de citation MLA (8e éd.)National Center for Education Statistics (U.S.). Education in the United States: Statistical Highlights. Dept. of Health, Education, and Welfare, Education Division, National Center for Education Statistics.
Attention : ces citations peuvent ne pas être correctes à 100%.