Παραπομπή APA

(1998). Longman essential activator: Put your ideas into words. Essex, UK: Longman.

Παραπομπή Chicago Style

Longman Essential Activator: Put Your Ideas Into Words. Essex, UK: Longman, 1998.

Παραπομπή MLA

Longman Essential Activator: Put Your Ideas Into Words. Essex, UK: Longman, 1998.

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