Cita APA (7a ed.)

Wallwork, J. F. (1972). A workbook in language and linguistics. Heinemman Educational Books.

Cita Chicago Style (17a ed.)

Wallwork, J. F. A Workbook in Language and Linguistics. London: Heinemman Educational Books, 1972.

Cita MLA (8a ed.)

Wallwork, J. F. A Workbook in Language and Linguistics. Heinemman Educational Books, 1972.