Cita APA (7a ed.)

Allen, W. S. (1974). Living English Structure (5th. ed.). Longman.

Cita Chicago Style (17a ed.)

Allen, W. Stannard. Living English Structure. 5th. ed. London: Longman, 1974.

Cita MLA (9a ed.)

Allen, W. Stannard. Living English Structure. 5th. ed. Longman, 1974.