Boardman, C. W. (1928). Professional tests as measures of teaching efficiency in high school. Teachers College, Columbia Univ.
Chicago-Zitierstil (17. Ausg.)Boardman, Charles W. Professional Tests as Measures of Teaching Efficiency in High School. New York City: Teachers College, Columbia Univ, 1928.
MLA-Zitierstil (9. Ausg.)Boardman, Charles W. Professional Tests as Measures of Teaching Efficiency in High School. Teachers College, Columbia Univ, 1928.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.