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001 - CONTROL NUMBER

• control field: 18314

003 - CONTROL NUMBER IDENTIFIER

• control field: OSt

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20170327085308.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 170327|| aca||aabn | a|a d

040 ## - CATALOGING SOURCE

• Original cataloging agency: OSt
• Transcribing agency: OSt

150 ## - HEADING--TOPICAL TERM

• Topical term or geographic name as entry element: Sistemas operativos

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (OSt)55114: Certificación de CompTIA A+_: Essentials, c2011