Gairns, R., & Redman, S. (2005). Natural english: Pre - Intermediate teacher's book. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Gairns, Ruth, , Stuart Redman. Natural English: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2005.
MLA引用形式Gairns, Ruth, , Stuart Redman. Natural English: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2005.
警告: この引用は必ずしも正確ではありません.