Não informado. (2002). Labour Force Statistics. Organization for Economic Co-operation and Development.
Chicago-referens (17:e uppl.)Não informado. Labour Force Statistics. Paris: Organization for Economic Co-operation and Development, 2002.
MLA-referens (8:e uppl.)Não informado. Labour Force Statistics. Organization for Economic Co-operation and Development, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.