Unless otherwise noted, copyright of the material on this server is held by ARL. Permission is granted to reproduce and distribute copies of the work for noncommercial purposes, provided that copies are distributed free of charge, and that the author, source, and copyright notice are included on each copy. This permission is in addition to rights of reproduction granted under Sections 107, 108, and other provisions of the US Copyright Act. For further information, contact Lee Anne George, Publications Program Officer, Association of Research Libraries.