Não informado. (1979). European Applied Research Reports. Harwood Academic Publishers.
Chicago-referens (17:e uppl.)Não informado. European Applied Research Reports. Chur, Suíça: Harwood Academic Publishers, 1979.
MLA-referens (8:e uppl.)Não informado. European Applied Research Reports. Harwood Academic Publishers, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.