Organisation for Economic Co-operation and Development, SourceOECD (Online service), ProQuest (Firm), Coles, M., & Werquin, P. (2007). Qualifications systems: Bridges to lifelong learning. OECD.
Citazione stile Chigago Style (17a edizione)Organisation for Economic Co-operation and Development, SourceOECD (Online service), ProQuest (Firm), Mike Coles, e Patrick Werquin. Qualifications Systems: Bridges to Lifelong Learning. Paris: OECD, 2007.
Citatione MLA (9a ed.)Organisation for Economic Co-operation and Development, et al. Qualifications Systems: Bridges to Lifelong Learning. OECD, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.