APA (7th ed.) Citation

Campbell lhMartha. Focus: Writing sentences and paragraphs.

Chicago Style (17th ed.) Citation

Campbell lhMartha. Focus: Writing Sentences and Paragraphs. New Jersey lbPrentice Hall lc1999.

MLA (9th ed.) Citation

Campbell lhMartha. Focus: Writing Sentences and Paragraphs.

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