A dictionary of modern English usage

MLA

Fowler, Henry Watson, and Ernest Gowers. A Dictionary of Modern English Usage. 2nd ed., repr. Oxford: Oxford university press, 1996.

APA

Fowler, H. Watson, & Gowers, E. (1996). A dictionary of modern English usage. 2nd ed., repr. Oxford: Oxford university press.

Chicago

Fowler, Henry Watson, and Ernest Gowers. A Dictionary of Modern English Usage. 2nd ed., repr. Oxford: Oxford university press, 1996.