Entrada Topical Term

Número de registros utilizados en: 1

001 - CONTROL NUMBER

• control field: 12004

003 - CONTROL NUMBER IDENTIFIER

• control field: OSt

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20191001235317.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 191001|| 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: Análisis del aire

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (OSt)2241: Instituto Nacional de Ecología- SEMARNAP 11808, Gestión de la calidad del aire en México:, oct. 2000.