id author title date pages extension mime words sentence flesch summary cache txt crl-14721 Sherby, Louise S. Reference and Information Services: An introduction (Book Review) 1992-05-01 3 .pdf application/pdf 1342 80 57 Part 2, ''Information Sources and Their Use, includes an introductory chapter on the selection and evaluation of sources, and discussions of reference sources by type (such as directories, indexes and abstracts, and dictionaries). Sample pages of reference sources are often provided. cache/crl-14721.pdf txt/crl-14721.txt