Walker, B. F. (2012). School dropout rates and prevention services and programs: Trends and data. Nova Science.
Chicago-Zitierstil (17. Ausg.)Walker, Byron F. School Dropout Rates and Prevention Services and Programs: Trends and Data. New York: Nova Science, 2012.
MLA-Zitierstil (9. Ausg.)Walker, Byron F. School Dropout Rates and Prevention Services and Programs: Trends and Data. Nova Science, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.