Παραπομπή σε μορφή APA (7η εκδ.)

(2002). Longman Language Activator: Helps you write and speak natural English (2nd ed.). Edinburgh, Longman, 2002.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Longman Language Activator: Helps You Write and Speak Natural English. 2nd ed. Edinburgh, Longman, 2002, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Longman Language Activator: Helps You Write and Speak Natural English. 2nd ed. Edinburgh, Longman, 2002, 2002.