... disagreement The proper aim of a usage guide is to resolve these problems, rather than describe the whole of current usage The Oxford Guide to English Usage has this aim Within the limits just ... Ernest Gowers, Oxford, 1965) NEB The New English Bible (Oxford and Cambridge, 1970) ODWE The Oxford Dictionary for Writers and Editors (Oxford, 1981) OED The Oxford English Dictionary (Oxford, 1933) ... Christmas's Thomas's To form the plural possessive, they add an apostrophe to the s of the plural in the normal way, e g bosses' the octopuses' tentacles the Joneses' dog the Thomases' dog French...