Crossroads, a K-16 American history curriculum. Part 3, Middle school curriculum [microform] / by Richard B. Bernstein ; a joint project of the Niskayuna School District and the Sage Colleges
原資料の出版事項: Troy, N.Y. ; [Washington, DC] : Council for Citizenship Education, Russell Sage College : U.S. Dept. of Education, Office of Educational Research and Improvement, Educational Resources Information Center, c1995