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Entry Topical Term
001 - CONTROL NUMBER
- control field: 2606
003 - CONTROL NUMBER IDENTIFIER
- control field: OSt
005 - DATE AND TIME OF LATEST TRANSACTION
- control field: 20230103130205.0
008 - FIXED-LENGTH DATA ELEMENTS
- fixed length control field: 230103|| 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: ভাষার ইতিহাস
670 ## - SOURCE DATA FOUND
- Source citation: Work cat.: (OSt)4056: চক্রবর্ত্তী,রতন লাল। 2167, ভাষা আন্দোলন: দলিলপত্র/, ১৯৯১