NAEP 1999 trends in academic progress [microform] : three decades of student performance / Jay R. Campbell, Catherine M. Hombo, John Mazzeo ; in collaboration with Steve Isham ... [et al.]
原資料の出版事項: [Washington, DC] : U.S. Dept. of Education, Office of Educational Research and Improvement, National Center for Education Statistics : Educational Resources Information Center, [2000]