Cita APA (7a ed.)

Gustafsson, M., & Hertzberg, L. (2002). The practice of language. Kluwer Academic.

Cita Chicago Style (17a ed.)

Gustafsson, Martin, y Lars Hertzberg. The Practice of Language. Dordrecht [etc.]: Kluwer Academic, 2002.

Cita MLA (9a ed.)

Gustafsson, Martin, y Lars Hertzberg. The Practice of Language. Kluwer Academic, 2002.