Information regarding the catalogue of copies available in the specialised libraries of the City of Madrid. The information is provided in the standard format in library management: Marc xml (English: Machine Readable Cataloging), is an international digital standard of bibliographic information description developed by the United States Library of Congress during the 1960s. Since 1973, it is international standard. In the section of “ Associated documentation & the document describing the structure of the data file with the information necessary to facilitate its interpretation is available. Other related datasets are also available on this portal: Specialised libraries. Active loans Specialised Libraries. Loan history
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