Cita APA (7a ed.)

Hilton, J. B. (1974). Language teaching: A systems approach. Methuen Educational.

Cita Chicago Style (17a ed.)

Hilton, J. B. Language Teaching: A Systems Approach. London [etc.]: Methuen Educational, 1974.

Cita MLA (9a ed.)

Hilton, J. B. Language Teaching: A Systems Approach. Methuen Educational, 1974.