Oxford wordpower dictionary

MLA

Wehmeier, Sally. Oxford Wordpower Dictionary. 4th impr. Oxford: Oxford university press, 1994.

APA

Wehmeier, S. (1994). Oxford wordpower dictionary. 4th impr. Oxford: Oxford university press.

Chicago

Wehmeier, Sally, ed. Oxford Wordpower Dictionary. 4th impr. Oxford: Oxford university press, 1994.