Cita APA (7a ed.)
Alexander, L. G. (1987). Fluency in English: An Integrated Course for Advanced Students (21 impression.). Longman Group UK.
Cita Chicago Style (17a ed.)
Alexander, Louis George. Fluency in English: An Integrated Course for Advanced Students. 21 impression. Harlow: Longman Group UK, 1987.
Cita MLA (9a ed.)
Alexander, Louis George. Fluency in English: An Integrated Course for Advanced Students. 21 impression. Longman Group UK, 1987.
Precaución: Estas citas no son 100% exactas.