Cita APA

 Kirszner, L. G. (2008).  Focus on writing: Paragraphs and essays.  Bedford/St. Martin’s.

Chicago Style Citation

 Kirszner, Laurie G.  Focus On Writing: Paragraphs and Essays.  Bedford/St. Martin’s, 2008.

Cita MLA

 Kirszner, Laurie G.  Focus On Writing: Paragraphs and Essays.  Bedford/St. Martin’s, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.