Cita APA

(2002). Longman language activator: Helps you write and speak natural English. London: Longman.

Citación estilo Chicago

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

Cita MLA

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

Precaución: Estas citas no son 100% exactas.