Hadfield, J., & Hadfield, C. (1999). Oxford basic: Simple listening activities. Oxford: Oxford Univ. Press.
シカゴスタイル引用形Hadfield, Jill, , Charles Hadfield. Oxford Basic: Simple Listening Activities. Oxford: Oxford Univ. Press, 1999.
MLA引用形式Hadfield, Jill, , Charles Hadfield. Oxford Basic: Simple Listening Activities. Oxford: Oxford Univ. Press, 1999.
警告: この引用は必ずしも正確ではありません.