APA (7th ed.) Citation

Collins. (1996). Collins cobuild Learner's dictionary. HarperCollins.

Chicago Style (17th ed.) Citation

Collins. Collins Cobuild Learner's Dictionary. London: HarperCollins, 1996.

MLA (9th ed.) Citation

Collins. Collins Cobuild Learner's Dictionary. HarperCollins, 1996.

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