Bill, J. M., Trew, K., & Wilson, J. A. (1974). Early leaving in Northern Ireland: Report of an enquiry among 15-year-olds, their teachers and parents in the year preceding the raising of the school leaving age to 16. Northern Ireland Council for Education Research.
Chicago-Zitierstil (17. Ausg.)Bill, John M., Karen Trew, und John A. Wilson. Early Leaving in Northern Ireland: Report of an Enquiry Among 15-year-olds, Their Teachers and Parents in the Year Preceding the Raising of the School Leaving Age to 16. Belfast: Northern Ireland Council for Education Research, 1974.
MLA-Zitierstil (9. Ausg.)Bill, John M., et al. Early Leaving in Northern Ireland: Report of an Enquiry Among 15-year-olds, Their Teachers and Parents in the Year Preceding the Raising of the School Leaving Age to 16. Northern Ireland Council for Education Research, 1974.