Langan, J. (2002). English skills with readings (5th ed.). McGraw-Hill.
Chicagoスタイル(17版)引用形式Langan, John. English Skills with Readings. 5th ed. Boston: McGraw-Hill, 2002.
MLA(8版)引用形式Langan, John. English Skills with Readings. 5th ed. McGraw-Hill, 2002.
警告: この引用は必ずしも正確ではありません.