APA (7th ed.) Citation

Longman, T. (2008). The Longman advanced American dictionary. Pearson.

Chicago Style (17th ed.) Citation

Longman, The. The Longman Advanced American Dictionary. Pearson, 2008.

MLA (8th ed.) Citation

Longman, The. The Longman Advanced American Dictionary. Pearson, 2008.

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