Hornby, A. S., Deuter, M., Turnbull, J., & Bradbury, J. Oxford Advanced Learner's Dictionary of Current English (6th edition.).
Citazione stile Chigago Style (17a edizione)Hornby, Albert Sydney, Margaret Deuter, Joanna Turnbull, e Jennifer Bradbury. Oxford Advanced Learner's Dictionary of Current English. 6th edition.
Citatione MLA (8a ed.)Hornby, Albert Sydney, et al. Oxford Advanced Learner's Dictionary of Current English. 6th edition.
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