ALEXANDER, L. (1980). Mainline: Beginers B (student' book). Longman.
Chicagoスタイル(17版)引用形式ALEXANDER, L.G. Mainline: Beginers B (student' Book). London: Longman, 1980.
MLA(9版)引用形式ALEXANDER, L.G. Mainline: Beginers B (student' Book). Longman, 1980.
警告: この引用は必ずしも正確ではありません.