Cita APA (7th ed.)

Alexander, L. G. (1967). Fluency in English: An integrated course for advanced students (1a. ed.). Longman.

Cita Chicago (17th ed.)

Alexander, Louis George. Fluency in English: An Integrated Course for Advanced Students. 1a. ed. Londres: Longman, 1967.

Cita MLA (9th ed.)

Alexander, Louis George. Fluency in English: An Integrated Course for Advanced Students. 1a. ed. Longman, 1967.