Cita APA (7th ed.)

Graddol, D., Cheshire, J., & Swann, J. (1994). Describing language (2nd ed.). Open University Press.

Cita Chicago (17th ed.)

Graddol, David, Jenny Cheshire, i Joan Swann. Describing Language. 2nd ed. Buckingham: Open University Press, 1994.

Cita MLA (9th ed.)

Graddol, David, et al. Describing Language. 2nd ed. Open University Press, 1994.