APA (7th ed.) Citation

Lexicon Publications (Firm). (1989). The New Lexicon Webster's dictionary of the English language (1991 encyclopedic ed.). Lexicon.

Chicago Style (17th ed.) Citation

Lexicon Publications (Firm). The New Lexicon Webster's Dictionary of the English Language. 1991 encyclopedic ed. New York: Lexicon, 1989.

MLA (9th ed.) Citation

Lexicon Publications (Firm). The New Lexicon Webster's Dictionary of the English Language. 1991 encyclopedic ed. Lexicon, 1989.