(2008). Face2face: Elementary workbook without answer key. New York, US: Cambridge University Press.
シカゴスタイル引用形Face2face: Elementary Workbook Without Answer Key. New York, US: Cambridge University Press, 2008.
MLA引用形式Face2face: Elementary Workbook Without Answer Key. New York, US: Cambridge University Press, 2008.
警告: この引用は必ずしも正確ではありません.