Kelly, F. J. (1972). Teachers' marks: Their variability and standardization (Repr. of the ed. New York: Teachers College, Columbia University, 1914.). AMS Press.
Chicago-Zitierstil (17. Ausg.)Kelly, Frederick James. Teachers' Marks: Their Variability and Standardization. Repr. of the ed. New York: Teachers College, Columbia University, 1914. New York: AMS Press, 1972.
MLA-Zitierstil (9. Ausg.)Kelly, Frederick James. Teachers' Marks: Their Variability and Standardization. Repr. of the ed. New York: Teachers College, Columbia University, 1914. AMS Press, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.