Ferguson, R. L., & Maxey, E. J. (1976). Trends in the academic performance of high school and college students. Research and Development Division, American College Testing Program.
Chicago-Zitierstil (17. Ausg.)Ferguson, Richard L., und Earl James Maxey. Trends in the Academic Performance of High School and College Students. Iowa City, Ia: Research and Development Division, American College Testing Program, 1976.
MLA-Zitierstil (9. Ausg.)Ferguson, Richard L., und Earl James Maxey. Trends in the Academic Performance of High School and College Students. Research and Development Division, American College Testing Program, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.