Cita APA (7th ed.)

Calvet, L. J., & Brown, A. (2006). Towards an ecology of world languages. Polity.

Cita Chicago (17th ed.)

Calvet, Louis Jean, i Andrew Brown. Towards an Ecology of World Languages. Cambridge: Polity, 2006.

Cita MLA (9th ed.)

Calvet, Louis Jean, i Andrew Brown. Towards an Ecology of World Languages. Polity, 2006.