Thanks. Not sure how I could have missed it. Looks like it came right at the end of Bantam's license (I'm surprised; most of the stuff that wasn't narrative fiction came out of Ballantine before the beginning of the Pocket era, although there were notable exceptions, like the "Star Fleet Puzzle Manual" and the "Star Fleet Cooking Manual" (yes, it's a cookbook, and the preface includes a puzzle in the form of a FORTRAN program that was the purported food synthesizer algorithm for McCoy's favorite dish [if executed, as I recall, it prints out "CHICKEN 3.14159 SKEPTIC"]).
Used copies are all over the place in terms of price. Given that it has Humanx Commonwealth "Easter eggs" (I think most people around here already know I'm an ADF fan, awaiting By the Throat and Secretions with a proverbial worm on my tongue*), I can't exactly pass it up, so I just ordered one out of Alibris, at the cheapest price I could see anywhere.
____
* You know: "baited" breath.