Cita APA

Kirszner, L. G., & Mandell, S. R. (2011). Focus on writing: Paragraphs and essays (2. ed.). Boston, Mass.: Bedford/St. Martin's.

Citación estilo Chicago

Kirszner, Laurie G., y Stephen R. Mandell. Focus On Writing: Paragraphs and Essays. 2. ed. Boston, Mass.: Bedford/St. Martin's, 2011.

Cita MLA

Kirszner, Laurie G., y Stephen R. Mandell. Focus On Writing: Paragraphs and Essays. 2. ed. Boston, Mass.: Bedford/St. Martin's, 2011.