(1979). Lifelong education: A stocktaking. Unesco Institute for Education.
Citazione stile Chigago Style (17a edizione)Lifelong Education: A Stocktaking. Hamburg: Unesco Institute for Education, 1979.
Citatione MLA (9a ed.)Lifelong Education: A Stocktaking. Unesco Institute for Education, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.