(1989). Webster's unabridged dictionary of the English language. Portland House : Distributed by Crown Publishers.
Chicago-viite (17. p.)Webster's Unabridged Dictionary of the English Language. New York: Portland House : Distributed by Crown Publishers, 1989.
MLA-viite (9. p.)Webster's Unabridged Dictionary of the English Language. Portland House : Distributed by Crown Publishers, 1989.