एपीए उद्धरण

Williams, I. (2002). Green light three: Student book. London: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Williams, Ivor. Green Light Three: Student Book. London: McGraw-Hill, 2002.

एमएलए उद्धरण

Williams, Ivor. Green Light Three: Student Book. London: McGraw-Hill, 2002.