Cita APA (7th ed.)

(1989). Webster's unabridged dictionary of the English language. Portland House : Distributed by Crown Publishers.

Cita Chicago (17th ed.)

Webster's Unabridged Dictionary of the English Language. New York: Portland House : Distributed by Crown Publishers, 1989.

Cita MLA (9th ed.)

Webster's Unabridged Dictionary of the English Language. Portland House : Distributed by Crown Publishers, 1989.