Cita APA (7th ed.)

Johns, L. C., & Sevigny, L. (2006). Writing excellence. Thomson Delmar Learning.

Cita Chicago (17th ed.)

Johns, Lee Clark, i Leo Sevigny. Writing Excellence. Clifton Park, N.Y: Thomson Delmar Learning, 2006.

Cita MLA (9th ed.)

Johns, Lee Clark, i Leo Sevigny. Writing Excellence. Thomson Delmar Learning, 2006.