Service Material from the G.S.O.
Service material is available to A.A. members upon request. This material differs from Conference-approved literature in that it has not come about through Conference Advisory Action. It is produced when there is a need for readily available information on a specific subject. Service material reflects A.A. group experience as well as specific and timely information that is subject to change.
http://www.aa.org/subpage.cfm?page=98
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