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The PN-subclass shelf.
The PN-subclass shelf.
Java programming books in the QA subclass.
Java programming books in the QA subclass.
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A library book shelf in Hong Kong arranged using the Dewey classification
A library book shelf in Hong Kong arranged using the Dewey classification
The Moys Classification Scheme as used by the law library of the Hong Kong High Court
The Moys Classification Scheme as used by the law library of the Hong Kong High Court