... 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 ... Gowers, Oxford, 1965) NEB The New English Bible (Oxford and Cambridge, 1970) ODWE OED TLS The Oxford Dictionary for Writers and Editors (Oxford, 1981) 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 Joneses' dog the octopuses' tentacles the Thomases' dog French...