एपीए उद्धरण

Williams, I., & Dermot Curley. (2003). Green light four: Student book. New York, NY: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Williams, Ivor., और Dermot Curley. Green Light Four: Student Book. New York, NY: McGraw-Hill, 2003.

एमएलए उद्धरण

Williams, Ivor., और Dermot Curley. Green Light Four: Student Book. New York, NY: McGraw-Hill, 2003.