Entry Topical Term

Number of records used in: 1

001 - CONTROL NUMBER

• control field: 15402

003 - CONTROL NUMBER IDENTIFIER

• control field: OSt

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20240624122730.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 240624|| aca||aabn | a|a d

040 ## - CATALOGING SOURCE

• Original cataloging agency: OSt
• Transcribing agency: OSt

150 ## - HEADING--TOPICAL TERM

• Topical term or geographic name entry element: telecommunications system

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (OSt)6093: Williams,B.K, stacey C. Sawyer & Sarah E. Hutchinson 3931, Using information technology:a practical introduction to computers and communications, 1999