Não informado. (1999). Journal of Computer Assisted Learning. Blackwell Science.
Chicago (17e ed.) BronvermeldingNão informado. Journal of Computer Assisted Learning. Oxford, Inglaterra: Blackwell Science, 1999.
MLA (8e ed.) BronvermeldingNão informado. Journal of Computer Assisted Learning. Blackwell Science, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.