APA (7th ed.) Citation

(2018). Collins COBUILD advanced learner's dictionary (9th ed.). HarperCollins.

Chicago Style (17th ed.) Citation

Collins COBUILD Advanced Learner's Dictionary. 9th ed. Glasgow: HarperCollins, 2018.

MLA (8th ed.) Citation

Collins COBUILD Advanced Learner's Dictionary. 9th ed. HarperCollins, 2018.

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