Cita APA (7a ed.)

Wallwork, J. F. (1978). Language and people. Heinemann Educational.

Cita Chicago Style (17a ed.)

Wallwork, J. F. Language and People. London: Heinemann Educational, 1978.

Cita MLA (9a ed.)

Wallwork, J. F. Language and People. Heinemann Educational, 1978.