Classification. adopted 1898 : as in force January 1, 1902 Class Z, Bibliography and library science :

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Bibliographic Details
OCLC:574281813
Corporate Author: Library of Congress. Classification Division
Language:English
Published: Washington : Government Printing Office, Library Division, 1902.
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Online Resource:LLMC Digital
Related Items:Print version: Classification. Class Z. Bibliography and library science.
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Government Document Monograph Online Resource