Test Development and Research Unit (Cambridge). (1975). Multiple choice item writing. Test Development and Research Unit.
Chicago-Zitierstil (17. Ausg.)Test Development and Research Unit (Cambridge). Multiple Choice Item Writing. Cambridge: Test Development and Research Unit, 1975.
MLA-Zitierstil (9. Ausg.)Test Development and Research Unit (Cambridge). Multiple Choice Item Writing. Test Development and Research Unit, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.