Longman. (2002). Language Activator: Helps You Write And Speak Natural English (2nd.). Pearson.
Style de citation Chicago (17e éd.)Longman. Language Activator: Helps You Write And Speak Natural English. 2nd. Delhi: Pearson, 2002.
Style de citation MLA (9e éd.)Longman. Language Activator: Helps You Write And Speak Natural English. 2nd. Pearson, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.