Swan, M. (2003). Practical English usage (Fifth impression.). Oxford University Press.
Chicagoスタイル(17版)引用形式Swan, Michael. Practical English Usage. Fifth impression. Oxford ; New York: Oxford University Press, 2003.
MLA(8版)引用形式Swan, Michael. Practical English Usage. Fifth impression. Oxford University Press, 2003.
警告: この引用は必ずしも正確ではありません.