APA (7th ed.) Citation

Biber, D. (1991). Variation across speech and writing (1. paperback ed.). Cambridge Univ. Pr.

Chicago Style (17th ed.) Citation

Biber, Douglas. Variation Across Speech and Writing. 1. paperback ed. Cambridge u.a: Cambridge Univ. Pr, 1991.

MLA (9th ed.) Citation

Biber, Douglas. Variation Across Speech and Writing. 1. paperback ed. Cambridge Univ. Pr, 1991.