Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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