The Dictionary of Ancient Deities indicates a previous (original) publication as "Encyclopedia of Ancient Deities," published by McFarland & Co (North Carolian) in 2000. It might turn up in a used book shop by that name. The version I have is from Oxford Press, but still carries the same © 2000 by Patricia Turner and the estate of Charles Russell Coulter.

The copy I have is the only one I've seen, but it appeared at Barnes, and I found it "by accident." Later inquiry to see if I could get a backup copy failed to produce anything from there, but it might have just been temporarily out of stock. I haven't made a serious search to see if it's easily available elsewhere.

My copy was $35.00 (US) which seemed reasonable give the bulk of the thing. 598 pages and in "uncomfortably small" (mostly 5.5 or 6 point) type for my old eyeballs, but everything's legible enough if I don't try to read it all at once.

(It doesn't seem to contain any of our Kansas politicians or preachers, who seem to "think they're gods" but maybe that'll be in a later edition.)

John