(1989). Headway workbook: Advanced. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.
MLA引用形式Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.
警告: この引用は必ずしも正確ではありません.
(1989). Headway workbook: Advanced. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.
MLA引用形式Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.