APA (7th ed.) Citation

United States. Department of Education. (1987). What works: Research about teaching and learning (2nd ed.). U.S. Dept. of Education.

Chicago Style (17th ed.) Citation

United States. Department of Education. What Works: Research About Teaching and Learning. 2nd ed. [Washington, D.C.?]: U.S. Dept. of Education, 1987.

MLA (9th ed.) Citation

United States. Department of Education. What Works: Research About Teaching and Learning. 2nd ed. U.S. Dept. of Education, 1987.