APA (7th ed.) Citation

Butt, J., & Benjamin, C. (1994). A new reference grammar of modern Spanish (2nd ed.). Edward Arnold.

Chicago Style (17th ed.) Citation

Butt, John, and Carmen Benjamin. A New Reference Grammar of Modern Spanish. 2nd ed. London ; New York: Edward Arnold, 1994.

MLA (9th ed.) Citation

Butt, John, and Carmen Benjamin. A New Reference Grammar of Modern Spanish. 2nd ed. Edward Arnold, 1994.