Entrada Topical Term

Número de registros utilizados en: 2

001 - CONTROL NUMBER

• control field: 9218

003 - CONTROL NUMBER IDENTIFIER

• control field: OSt

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20190422234827.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 190422|| 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: CONTAMINACION DEL AGUA

670 ## - SOURCE DATA FOUND

• Source citation: Work cat.: (OSt)322: Witt, Vicente M. 9217, Desinfección del agua a nivel casero en zonas urbanas marginales y rurales, may. 1993.