APA (7th ed.) Citation

(1987). Advanced learner's English dictionary. Harpercollins Publisher.

Chicago Style (17th ed.) Citation

Advanced Learner's English Dictionary. Great Britain: Harpercollins Publisher, 1987.

MLA (9th ed.) Citation

Advanced Learner's English Dictionary. Harpercollins Publisher, 1987.

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