Note volume 4 of this is in Logos, but it's an eleven-volume set, and all Logos has is volume 4, and busted links to volumes 8 and 11.
I am suggesting the individual volumes - all eleven - and not the single combined volume offered for Kindle, which has a completely botched table of contents - a total fail on Amazon's part. But Amazon also offers each of the eleven volumes separately. Logos should do the same. Why offer only volume 4? This is an epic reference work.