(2012). IELTS Foundation: Student's book. Oxford: Macmillan Exams.
シカゴスタイル引用形IELTS Foundation: Student's Book. Oxford: Macmillan Exams, 2012.
MLA引用形式IELTS Foundation: Student's Book. Oxford: Macmillan Exams, 2012.
警告: この引用は必ずしも正確ではありません.
(2012). IELTS Foundation: Student's book. Oxford: Macmillan Exams.
シカゴスタイル引用形IELTS Foundation: Student's Book. Oxford: Macmillan Exams, 2012.
MLA引用形式IELTS Foundation: Student's Book. Oxford: Macmillan Exams, 2012.