Ribbins, P. (1992). Delivering the national curriculum: Subjects for secondary schooling. Longman.
Citazione stile Chigago Style (17a edizione)Ribbins, Peter. Delivering the National Curriculum: Subjects for Secondary Schooling. Harlow, Essex: Longman, 1992.
Citatione MLA (9a ed.)Ribbins, Peter. Delivering the National Curriculum: Subjects for Secondary Schooling. Longman, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.