APA (7th ed.) Citation

(2004). Collins English dictionary & thesaurus (4th ed.). HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Collins English Dictionary & Thesaurus. 4th ed. Britain: HarperCollins Publishers, 2004.

MLA (9th ed.) Citation

Collins English Dictionary & Thesaurus. 4th ed. HarperCollins Publishers, 2004.

Warning: These citations may not always be 100% accurate.