Não informado. (1992). Test. Spanish Society of Statistics and Operations Research.
Chicago (17e ed.) BronvermeldingNão informado. Test. Madrid: Spanish Society of Statistics and Operations Research, 1992.
MLA (8e ed.) BronvermeldingNão informado. Test. Spanish Society of Statistics and Operations Research, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.