(1993). Effects of Instructional Differences among Ability Groups on Student Achievment in Middle-School Science and Mathematics Thomas B. Hoffer and Adam Gamoran. [microform].
Chicago Style (17th ed.) CitationEffects of Instructional Differences Among Ability Groups on Student Achievment in Middle-School Science and Mathematics Thomas B. Hoffer and Adam Gamoran. [microform]. 1993.
MLA (9th ed.) CitationEffects of Instructional Differences Among Ability Groups on Student Achievment in Middle-School Science and Mathematics Thomas B. Hoffer and Adam Gamoran. [microform]. 1993.
Warning: These citations may not always be 100% accurate.