National Institute of Adult Continuing Education (England and Wales). (1989). Adults learning. [National Institute of Adult Continuing Education].
Čikaški stil citiranja (17. izdanje)National Institute of Adult Continuing Education (England and Wales). Adults Learning. [Leicester]: [National Institute of Adult Continuing Education], 1989.
MLA način citiranja (9. izdanje)National Institute of Adult Continuing Education (England and Wales). Adults Learning. [National Institute of Adult Continuing Education], 1989.
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