APA引文

Williams, I. (2003). Green light four: Student book. London: McGraw-Hill/ELT.

Trích dẫn kiểu Chicago

Williams, Ivor. Green Light Four: Student Book. London: McGraw-Hill/ELT, 2003.

MLA引文

Williams, Ivor. Green Light Four: Student Book. London: McGraw-Hill/ELT, 2003.