The reason I am asking this question is: I am looking for a number of 80s SciFi novels by the American author C J Cherryh, of 'Downbelow Station' renown. They all seem to be out of print, and I cannot find them on ZVAB nor as ebooks. So if you know of a used book shop that is competent in tracking down older works, I would kindly ask you to point me thither.
Much obliged,
Fortescue-Smythe