Παραπομπή σε μορφή APA (7η εκδ.)

Wallwork, J. F. (1969). Language and linguistics: An introduction to the study of language. Heinemann Educational Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wallwork, J. F. Language and Linguistics: An Introduction to the Study of Language. London: Heinemann Educational Books, 1969.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wallwork, J. F. Language and Linguistics: An Introduction to the Study of Language. Heinemann Educational Books, 1969.