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# Principle of objective classification of documents
# Principles of the Dewey Decimal Classification
# Principles of map classification
# Practical Classification of Libraries
# Classification in libraries and information centers
# Classification in Arab Libraries
# The importance of classification in libraries
# The foundations of cataloging and classification for libraries
# Explanation of classification systems in libraries
# Your guide to the practical classification of libraries
# Libraries classification
# Classification and classification systems
# Modern classification systems in libraries
# Classification in libraries and information centers0
# Classification of books and the history and systems of libraries
# General principles of practical classification in libraries
# Cataloging and Classification Principles
# The principles underlying the Dewey Decimal Classification
