The collection should be frequently and systematically reviewed for currency of information. Superseded editions and titles containing outdated information should be withdrawn. Classic or standard retrospective materials may be retained. The collection should be systematically reviewed for currency of information and to assure that essential and significant information is retained including significant numbers of classic retrospective materials. Older material is usually retained for historical research and is actively preserved.
Older material is retained for historical research and is actively preserved.
A Comprehensive Level collection can serve as a national or international resource. Return to CM Dept.