Aids to readers.
By: National Reference Library of Science and Invention.
Material type:
no. 1. Holdings of translated journals -- no. 2. Outline of the classification ... in Holborn Division -- no. 2a. Main groups of classification used in the Holborn Division -- no. 5. Notes on the filing arrangement -- no. 6. Translations -- no. 7. Special holdings of Russian literature -- no. 8. Photocopy service -- no. 9a. Holdings of foreign patents : Germany -- no. 9b. Holdings of foreign patents : Belgium -- no. 10. Literature in the British patents section -- no. 11. Linguistic help -- no. 15. Notes on the author and name catalogues -- no. 16. Classification used in the Bays water Division -- no. 19. Translations series.
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