Παραπομπή σε μορφή APA (7η εκδ.)

Jones, L. Functions of english. A course for upper-intermediate and more advanced students (3a ed.).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Jones, Leo. Functions of English. A Course for Upper-intermediate and More Advanced Students. 3a ed.

Παραπομπή σε μορφή MLA (8th εκδ.)

Jones, Leo. Functions of English. A Course for Upper-intermediate and More Advanced Students. 3a ed.