Cita APA

Biber, D., Leech, G. N., & Conrad, S. (2015). Longman student grammar of spoken and written English. Harlow (Essex): Longman.

Citación estilo Chicago

Biber, Douglas, Geoffrey N. Leech, and Susan Conrad. Longman Student Grammar of Spoken and Written English. Harlow (Essex): Longman, 2015.

Cita MLA

Biber, Douglas, Geoffrey N. Leech, and Susan Conrad. Longman Student Grammar of Spoken and Written English. Harlow (Essex): Longman, 2015.