
https://global.oup.com/academic/product/the-compact-oxford-e...
This is the single-volume second edition. Mine is the two-volume first edition.
It even comes with a magnifying glass.
It would be great to have as an ebook, but such a thing does not exist and if it did, I suspect the price would close to two magnitudes more than the $8 I negotiated for my copy...heft perhaps had the virtue that the seller was less inclined to lug those many pounds back to their car.
Ebooks don't necessarily provide perpetual access: http://www.slate.com/articles/technology/technology/2009/07/... and https://www.theguardian.com/money/2012/oct/22/amazon-wipes-c...