Cita APA (7a ed.)

Allen, W. S. (1956). Living English Structure: A practice book for foreign students and key (3rd ed.). Longmans, Green.

Cita Chicago Style (17a ed.)

Allen, W. Stannard. Living English Structure: A Practice Book for Foreign Students and Key. 3rd ed. London [etc.]: Longmans, Green, 1956.

Cita MLA (9a ed.)

Allen, W. Stannard. Living English Structure: A Practice Book for Foreign Students and Key. 3rd ed. Longmans, Green, 1956.