Download or read book Reference and Information Services in the 21st Century, Second Edition Revised written by Kay Ann Cassell and published by ALA Neal-Schuman. This book was released on 2011-05-31 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide teaches failsafe methods for identifying important materials by matching specific types of questions to the best available sources, regardless of format. Information on more than 300 sources has been updated to provide you high quality information.