Harper Collins. (1996). Collins Cobuild, learner's dictionary. Harper Collins.
Chicago Style (17th ed.) CitationHarper Collins. Collins Cobuild, Learner's Dictionary. London: Harper Collins, 1996.
MLA (8th ed.) CitationHarper Collins. Collins Cobuild, Learner's Dictionary. Harper Collins, 1996.
Warning: These citations may not always be 100% accurate.