एपीए उद्धरण

O'Connell, S. (1996). Focus on first certificate for revised exam. [New York]: Longman.

शिकागो स्टाइल उद्धरण

O'Connell, Sue. Focus On First Certificate for Revised Exam. [New York]: Longman, 1996.

एमएलए उद्धरण

O'Connell, Sue. Focus On First Certificate for Revised Exam. [New York]: Longman, 1996.