Cita APA

 Hacker, D. (2007).  A writer’s reference: With Extra help for ESL Writers.  Bedford/St. Martin’s.

Citación estilo Chicago

 Hacker, Diana.  A Writer’s Reference: With Extra Help for ESL Writers.  Bedford/St. Martin’s, 2007.

Cita MLA

 Hacker, Diana.  A Writer’s Reference: With Extra Help for ESL Writers.  Bedford/St. Martin’s, 2007.

Precaución: Estas citas no son 100% exactas.