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 Chapter 5: Chapter 6: loguing, Physical Forms-Printed Book Catalogue, Card Catalogue, Sheaf Catalogue, Internal Forms. Dictionary Catalogue, Divided Catalogue, Classed Catalogue REFERENCE WORK Concept of Reference Function, Reference Librarians, Reference Books Encyclopaedias, Yearbooks, Handbooks, Directories, Biograp- hieal Sources, Dictionaries, Geo- graphical Sources, Indexes, Biblo- graphies, Evaluation of Reference Books, Reference Work in Public Libraries, Reference Work. in Academic Libraries, Four Aspects of Reference Service. LIBRARY ROUTINE Book Selection, Ordering of Books, Preparation of Books for Use, 68