Cita APA

Williams, J. M. (2003). Style: Lessons in clarity and grace (9th ed.). Longman.

Citación estilo Chicago

Williams, Joseph M. Style: Lessons in Clarity and Grace. 9th ed. New York: Longman, 2003.

Cita MLA

Williams, Joseph M. Style: Lessons in Clarity and Grace. 9th ed. Longman, 2003.