Citation Data
MLA
prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education. Trends in Academic Progress : Achievement of American Students in Science, 1970-90, Mathematics, 1973-90, Reading, 1971-90, and Writing, 1984-90. [Washington, D.C.?] :The Center, 1991.
APA
prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education. (1991). Trends in academic progress : achievement of American students in science, 1970-90, mathematics, 1973-90, reading, 1971-90, and writing, 1984-90. [Washington, D.C.?] :The Center,
Chicago
prepared by Educational Testing Service under contract with the National Center for Education Statistics, Office of Educational Research and Improvement, U.S. Department of Education. Trends in Academic Progress : Achievement of American Students in Science, 1970-90, Mathematics, 1973-90, Reading, 1971-90, and Writing, 1984-90. [Washington, D.C.?] :The Center, 1991.
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