Citazione Stile APA (7a Edizione)

Gulland, D. M. H. (2002). The penguin dictionary of English idoms. Penguin Books.

Citazione stile Chigago Style (17a edizione)

Gulland, Daphne M.& Hinds-Howell. The Penguin Dictionary of English Idoms. London: Penguin Books, 2002.

Citatione MLA (9a ed.)

Gulland, Daphne M.& Hinds-Howell. The Penguin Dictionary of English Idoms. Penguin Books, 2002.