DEVELOPING LIBRARY AND INFORMATION CENTER COLLECTIONS, 4th Ed. Library and Information Science Text Series. Edward G. Evans and Margaret R. Zarnosky. Englewood, CO: Libraries Unlimited, 2000, xxvi, 595 pp. Reviewed by James R. Kelly. GUIDE TO INFORMATION SOURCES IN THE PHYSICAL SCIENCES. David Stern. Libraries Unlimited, Inc., 2000, $65.00, ISBN 1-56308-751. Reviewed by Syed M. A. Khan. SELECTING AND MANAGING ELECTRONIC RESOURCES: A HOW-TO-DO-IT MANUAL FOR LIBRARIANS. Vicki L. Gregory. New York: Neal-Schuman Publishers, Inc., 2000. 109 pp. Reviewed by Emilie R. Algenio. MUSICAL LIBRARIANSHIP AT THE TURN OF THE CENTURY. Richard Griscom. Lanham, MD, and London: The Scarecrow Press, Inc., March 2000, Music Library Association, Technical Reports, No. 27, ISBN 0-8108-3866-4. Reviewed by Lesley Jorbin.