एपीए उद्धरण

(1997). Focus on advanced English C.A.E: Grammar practice. Edinburgh Gate, Halow: Addison-Wesley Longman.

शिकागो स्टाइल उद्धरण

Focus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.

एमएलए उद्धरण

Focus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.