Longman. (2002). Language Activator: Helps You Write And Speak Natural English (2nd.). Pearson.
Chicagoスタイル(17版)引用形式Longman. Language Activator: Helps You Write And Speak Natural English. 2nd. Delhi: Pearson, 2002.
MLA(9版)引用形式Longman. Language Activator: Helps You Write And Speak Natural English. 2nd. Pearson, 2002.
警告: この引用は必ずしも正確ではありません.