Citazione Stile APA (7a Edizione)

(2001). Collins concise dictionary (Twenty-first century edition.). HarperCollins.

Citazione stile Chigago Style (17a edizione)

Collins Concise Dictionary. Twenty-first century edition. Glasgow: HarperCollins, 2001.

Citatione MLA (8a ed.)

Collins Concise Dictionary. Twenty-first century edition. HarperCollins, 2001.