Standard Catalog of Smith & Wesson is correct. I don't know why anyone would buy or use the 1st or 2nd editions---unless they were interested in old books or were particularly fascinated by the escalating prices/values. The 3rd edition is the one you want. You can get it pretty much anywhere books are sold. Actually, the 4th edition is the one you want---because the 3rd edition is circa 2006----as in "old news".
Regrettably, there is no such thing as the 4th edition. It is my understanding there is little interest on the part of the publisher in investing in a 4th edition because the 3rd edition continues to sell well. I think this sort of thing may be where the phrase "Damned if you do, and damned if you don't!" came from.
Ralph Tremaine