National Institute of Adult Continuing Education (England and Wales). (1989). Adults learning. [National Institute of Adult Continuing Education].
Chicago-referens (17:e uppl.)National Institute of Adult Continuing Education (England and Wales). Adults Learning. [Leicester]: [National Institute of Adult Continuing Education], 1989.
MLA-referens (9:e uppl.)National Institute of Adult Continuing Education (England and Wales). Adults Learning. [National Institute of Adult Continuing Education], 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.