Gaya APA

Leahey, Thomas Hardy. (2004). The Ecology and semiotics of langunge learning . USA: Kluwer Academic Publisher.

Gaya Chicago

Leahey, Thomas Hardy. The Ecology and semiotics of langunge learning. USA: Kluwer Academic Publisher, 2004. .

Gaya MLA

Leahey, Thomas Hardy. The Ecology and semiotics of langunge learning. USA: Kluwer Academic Publisher, 2004. .

Gaya Turabian

Leahey, Thomas Hardy. The Ecology and semiotics of langunge learning. USA: Kluwer Academic Publisher, 2004. .