APA Style

Hornby, A, S., (ed.), S, W. (2000). Oxford Advanced Learner's Dictionary - Sixth Edition (Ed. 6). Oxford: Oxford University Press.

MLA Style

Hornby, A., S.., (ed.), Sally, Wehmeier. "Oxford Advanced Learner's Dictionary - Sixth Edition". Ed. 6 Oxford: Oxford University Press, 2000. Text.