Cita APA (7a ed.)

Biber, D. (2002). Longman student grammar of spoken and written English. Longman.

Cita Chicago Style (17a ed.)

Biber, Douglas. Longman Student Grammar of Spoken and Written English. Harlow: Longman, 2002.

Cita MLA (9a ed.)

Biber, Douglas. Longman Student Grammar of Spoken and Written English. Longman, 2002.