Treatment of Persian Materials in the National Union Catalog
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This study investigates the treatment of the Persian materials in the National Union Catalog (NUC). As there is no subject approach to NUC for the time being, and since Library of Congress determines American cataloging and classification procedure, the Library of Congress Catalog--Books:Subjects is selected as the basis of the study of NUC. It is assumed that NUC will reflect much the same characteristics. Persian materials are defined as those titles listed under the subject headings given in Appendix A of this report. This study compares a random sample of 5 per cent of the Persian materials with a sample at 2 per cent of the American materials (both samples are equal in number). American materials are defined as the titles listed under the subject headings similar to the subject headings selected in the process of random sampling of the Persian materials. The list of American subject headings is given in Appendix B of this report. The comparison of the two samples includes: the matching of depth of subject indexing, the average of added entries, the amount of bibliographical information, the language of these materials, and classification information. In addition to the comparison of the locations of Persian materials are determined and the list of the locations is given in Appendix C. The classification number of those Persian materials titles which have both Library of Congress Classification and Dewey Decimal classification are analyzed to show the difference of classifying Persian materials by either of these classifications. The findings suggest more research on the classification of Persian materials. The result is that Persian and American materials are treated approximately equally, and any difference is due to the composition of the language of these materials which has affect on determining the classification number.