Não informado. (1990). Language Acquisition. Lawrence Erlbaum Associates.
Chicago (17e ed.) BronvermeldingNão informado. Language Acquisition. Hillsdale, NJ: Lawrence Erlbaum Associates, 1990.
MLA (8e ed.) BronvermeldingNão informado. Language Acquisition. Lawrence Erlbaum Associates, 1990.
Let op: Deze citaties zijn niet altijd 100% accuraat.