Hinzen, H., & Knoll, J. H. (2009). Adult education and continuing education policy: Science in between society and politics. Bonn.
Chicago-referens (17:e uppl.)Hinzen, Heribert, och Jooachim H. Knoll. Adult Education and Continuing Education Policy: Science in Between Society and Politics. Poland: Bonn, 2009.
MLA-referens (8:e uppl.)Hinzen, Heribert, och Jooachim H. Knoll. Adult Education and Continuing Education Policy: Science in Between Society and Politics. Bonn, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.