APA (7th ed.) Citation

(2006). Collins English dictionary & thesaurus (2., essential ed.). HarperCollins.

Chicago Style (17th ed.) Citation

Collins English Dictionary & Thesaurus. 2., essential ed. Glasgow: HarperCollins, 2006.

MLA (9th ed.) Citation

Collins English Dictionary & Thesaurus. 2., essential ed. HarperCollins, 2006.

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