Introduction to NLC Library
of Ancient Books
Collection Layout and Opening
Hours in the NLC Library of
Ancient Books
> NLC Main Library
> The Beihai Branch
> Reading Rooms
  Opening Hours
Rare books Retrieval Methods
and Information Supply
NLC Library of Ancient Books
Reading Service Instructions
Chinese Memory Home > Guidance > Retrieval Methods

Online Catalogue Searches

NLC's OPAC system is the major way to access library resources. We only introduce the search functions for rare books here. If you wish to receive more details on other categories of books, please click on the "user's instruction" button on the search page, as illustrated. If readers have specific needs, they can also enquire our librarians in the Reference Department.



Basic searches though OPAC

You can search the catalogue in the following ways:

(A) Title search: Enter the full or partial information of a title. For example, for an English document, you can omit the initial letters"A', "An" and " The" .

(B) Keyword search: This is a more effective way to search. It can search in adjacent words, thus provide more precise search results.

(C) Author search: Enter the following phrases to search: Name of the author (individuals): You can enter the author's full name or keyword. For foreign authors, enter the last name first and then the given name. You can switch the last name and the given name if you are not sure which is first. Name of an institution: Enter the most commonly known name of an institution. Name of a conference: Enter the name of a conference to search for articles from the proceedings.

(D) Whole field search: Users can also search the catalogue with whole phrases, to find the most complete result. However using this way, you may end up with excessive search results.

OPAC retrieval instruction

1. Select ancient records of different databases in the multi-base search field: ancient records, ordinary rare books, local chronology and genealogy, publications in languages of national minorities and foreign ancient books. Selecting a specific database will narrow down the scope of search. As illustrated:



2. To save your time, please find your searched record in the reading room corresponding to the format of your record specified in the "record format" column. For records labelled "ancient records", please go to the Rare Books Reading Room; records labelled "documents of languages in national minorities", please go to the Chinese Ethnic Minorities' Languages Collections Reading Room; for "regular ancient books", please go to Reading Room; for Regular Ancient Books ; " genealogy" and " chronology", please go to Chronicles & Genealogies Reading Room.









3. User's Instruction of Card Catalogues

Besides the e-catalogue, there are also sets of card catalogues in each reading room for readers to browse. Since bibliographies of certain books are yet to be available for online retrieval, the bibliographic card is a very important tool for book retrieval.

The card catalogues of the Ordinary Ancient Books Section, NLC Library of Ancient Books can be browsed by classifications, titles, and authors. We use the Liu Guojun Classification to arrange the books into fifteen classifications.

The bibliographic cards for ancient books in the Rare Books Reading Room are browsed by classifications, titles and authors. The classification method we use is the Four-Branch Classification for ancient records. The rubbings bibliographic cards are browsed by titles, authors and by regions. Using the browsing by regions method, readers can find information of a rubbing by searching for the location of the original inscribed stone.

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