Granger, C. (1999). Yes!: Student's book. Macmillan Heinemann.
Chicago Style (17th ed.) CitationGranger, Colin. Yes!: Student's Book. Oxford, Inglaterra: Macmillan Heinemann, 1999.
MLA (9th ed.) CitationGranger, Colin. Yes!: Student's Book. Macmillan Heinemann, 1999.