Simpson,, J. (1989). Oxford English dictionary: Vol.6 (2nd ed.). Clarendon Press.
Chicago Edition CitationSimpson,, J.A. Oxford English Dictionary: Vol.6. 2nd ed. Oxford: Clarendon Press, 1989.
MLA Edition CitationSimpson,, J.A. Oxford English Dictionary: Vol.6. 2nd ed. Clarendon Press, 1989.
Warning: These citations may not always be 100% accurate.