Cita APA (7th ed.)

Hutchinson (Firm) & Ayto, J. (2003). Dictionary of difficult words. Bounty Books.

Cita Chicago (17th ed.)

Hutchinson (Firm) i John Ayto. Dictionary of Difficult Words. London: Bounty Books, 2003.

Cita MLA (9th ed.)

Hutchinson (Firm) i John Ayto. Dictionary of Difficult Words. Bounty Books, 2003.