Citação norma APA

Piper, T. (2001). And then there were two: Children and second language learning. Pippin Pub..

Citação norma Chicago

Piper, Terry. And Then There Were Two: Children and Second Language Learning. Toronto: Pippin Pub., 2001.

Citação norma MLA

Piper, Terry. And Then There Were Two: Children and Second Language Learning. Pippin Pub., 2001.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.