Cita APA (7th ed.)

Alexander, L. G. (1968). For and against: An oral practice book for advanced students of english. Longman.

Cita Chicago (17th ed.)

Alexander, Louis George. For and Against: An Oral Practice Book for Advanced Students of English. Londres: Longman, 1968.

Cita MLA (9th ed.)

Alexander, Louis George. For and Against: An Oral Practice Book for Advanced Students of English. Longman, 1968.