Duckworth, D. (1975). The experimental certificate of extended education: Summer 1974 ; a report to the Schools Council by the National Foundation for Educational Research. NFER Publ. Co.
Chicago-Zitierstil (17. Ausg.)Duckworth, Derek. The Experimental Certificate of Extended Education: Summer 1974 ; a Report to the Schools Council by the National Foundation for Educational Research. Windsor, Berks: NFER Publ. Co, 1975.
MLA-Zitierstil (9. Ausg.)Duckworth, Derek. The Experimental Certificate of Extended Education: Summer 1974 ; a Report to the Schools Council by the National Foundation for Educational Research. NFER Publ. Co, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.