APA
Summers D. (., Bullon S. (. e., . (2006). Longman Exams Dictionary for upper intermediate - Advanced Learners. England: Pearson Education Ltd.
Chicago
Summers Della (director), Bullon Stephen (main editor), . 2006. Longman Exams Dictionary for upper intermediate - Advanced Learners. England: Pearson Education Ltd.
Harvard
Summers D. (., Bullon S. (. e., . (2006). Longman Exams Dictionary for upper intermediate - Advanced Learners. England: Pearson Education Ltd.
MLA
Summers Della (director), Bullon Stephen (main editor), . Longman Exams Dictionary for upper intermediate - Advanced Learners. England: Pearson Education Ltd. 2006.
