Não informado. (1991). Training and Development. American Society for Training and Development.
Chicago-referens (17:e uppl.)Não informado. Training and Development. Alexandria, Va: American Society for Training and Development, 1991.
MLA-referens (8:e uppl.)Não informado. Training and Development. American Society for Training and Development, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.