APA Citation

 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.

MLA Citation

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

Warning: These citations may not always be 100% accurate.