Não informado. (1992). Test. Spanish Society of Statistics and Operations Research.
Chicago-referens (17:e uppl.)Não informado. Test. Madrid: Spanish Society of Statistics and Operations Research, 1992.
MLA-referens (8:e uppl.)Não informado. Test. Spanish Society of Statistics and Operations Research, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.