Cita APA (7th ed.)

Spears, R. A., & Kirkpatrick, B. (1999). Essential english idioms: An up-to-date guide to the idioms of british english. NTC.

Cita Chicago (17th ed.)

Spears, Richard A., i Betty Kirkpatrick. Essential English Idioms: An Up-to-date Guide to the Idioms of British English. Lincolnwood: NTC, 1999.

Cita MLA (9th ed.)

Spears, Richard A., i Betty Kirkpatrick. Essential English Idioms: An Up-to-date Guide to the Idioms of British English. NTC, 1999.