Entry Tema-Encabezamiento de Materia

Number of records used in: 1

001 - CONTROL NUMBER

• control field: 24599

003 - CONTROL NUMBER IDENTIFIER

• control field: MX-MxCDU

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20240227103123.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 240227|| aca||aabn | a|a d

040 ## - CATALOGING SOURCE

• Original cataloging agency: MX-MxCDU
• Transcribing agency: MX-MxCDU

150 ## - HEADING--TOPICAL TERM

• Topical term or geographic name entry element: Pandemia de COVID-19, 2020-2023
• General subdivision: Terminología

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (MX-MxCDU)321561: Virgen Aguilar, Salvador Ricardo, 15723 autor, Ondas de choque :, 2022