Thornley, G. C. (1962). Key to further practice in english. Longmans.
Citación estilo ChicagoThornley, G. C. Key to Further Practice in English. London: Longmans, 1962.
Cita MLAThornley, G. C. Key to Further Practice in English. Longmans, 1962.
Warning: These citations may not always be 100% accurate.