Campbell, C., Duckworth, M., & Gude, K. (2002). Matrix: Pre - Intermediate Teacher's book. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Campbell, Colin, Michael Duckworth, , Kathy Gude. Matrix: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2002.
MLA引用形式Campbell, Colin, Michael Duckworth, , Kathy Gude. Matrix: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2002.
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