APA (7th ed.) Citation

Collins, C. (1990). English dictionary: Helping learners with real English. Harper Collins Publishers.

Chicago Style (17th ed.) Citation

Collins, Cobuild. English Dictionary: Helping Learners with Real English. London: Harper Collins Publishers, 1990.

MLA (9th ed.) Citation

Collins, Cobuild. English Dictionary: Helping Learners with Real English. Harper Collins Publishers, 1990.

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