Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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