World Health Organization. (1989). WORLD health organization: : publications catalogue 1948- 1989. World Health Organization.
Chicago-referens (17:e uppl.)World Health Organization. WORLD Health Organization: : Publications Catalogue 1948- 1989. World Health Organization, 1989.
MLA-referens (9:e uppl.)World Health Organization. WORLD Health Organization: : Publications Catalogue 1948- 1989. World Health Organization, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.