(2005). How changes in entry requirements alter the teacher workforce and affect student achievement. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)How Changes in Entry Requirements Alter the Teacher Workforce and Affect Student Achievement. Cambridge, Mass: National Bureau of Economic Research, 2005.
MLA-Zitierstil (9. Ausg.)How Changes in Entry Requirements Alter the Teacher Workforce and Affect Student Achievement. National Bureau of Economic Research, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.