Παραπομπή σε μορφή APA (7η εκδ.)

KENCH, A. (1991). The language of english business letters: Commercial correspondence for foreign students of english. Macmillan publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

KENCH, A. The Language of English Business Letters: Commercial Correspondence for Foreign Students of English. London: Macmillan publishers, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

KENCH, A. The Language of English Business Letters: Commercial Correspondence for Foreign Students of English. Macmillan publishers, 1991.