The Roman villa at North Leigh lies some 10 miles from Oxford (and is under the care of English Heritage). This was a site leased and excavated by Professor Francis Haverfield, and thus has plenty of resonances with the history of archaeology in Britain.
On my shelf is a 1973 Department of the Environment guide to the villa (cost 3p). It consists of a folded piece of A4 light card, with a plan on the inside. There is a detailed description of the remains.