UNESCO Institute for Lifelong Learning (UIL) (Germany), Yang, J., & Valdes-Cotera, R. (2011). Conceptual evolution and policy developments in lifelong learning. UNESCO Institute for Lifelong Learning (UIL).
Chicago-viite (17. p.)UNESCO Institute for Lifelong Learning (UIL) (Germany), Jin Yang, ja Raul Valdes-Cotera. Conceptual Evolution and Policy Developments in Lifelong Learning. Hamburg, Germany: UNESCO Institute for Lifelong Learning (UIL), 2011.
MLA-viite (8. p.)UNESCO Institute for Lifelong Learning (UIL) (Germany), et al. Conceptual Evolution and Policy Developments in Lifelong Learning. UNESCO Institute for Lifelong Learning (UIL), 2011.
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