APA (7th ed.) Citation

(2006). Collins COBUILD advanced learner's English dictionary. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Collins COBUILD Advanced Learner's English Dictionary. Glasgow: HarperCollins Publishers, 2006.

MLA (9th ed.) Citation

Collins COBUILD Advanced Learner's English Dictionary. HarperCollins Publishers, 2006.

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