Al anon for you and al-ateen for the kids if they are old enough, Read Read Read, stickies, anything by Melody Beattie as well as those already recommended, and a counsellor specialising in addiction for your hubby, if he wants it.
Stopping without support is in my experience, doomed! He will need some kind of step work, to ask those questions like why did he start to depend on alcohol??
Work on you and your kids too, it is so easy to get caught up in this and end concentrating on the A's problems so much you begin to loose yourself, and overlooking the kiddies.
Welcome to the site! i hope you stick around, read and post!
Lily xxxxxxxxxxxxxxxxxxxxx