Entry Topical Term

Number of records used in: 2

001 - CONTROL NUMBER

• control field: 69608

003 - CONTROL NUMBER IDENTIFIER

• control field: OSt

005 - DATE AND TIME OF LATEST TRANSACTION

• control field: 20191028105222.0

008 - FIXED-LENGTH DATA ELEMENTS

• fixed length control field: 020812i| anannbabn |a ana

010 ## - LIBRARY OF CONGRESS CONTROL NUMBER

• LC control number: sh 99004600

035 ## - SYSTEM CONTROL NUMBER

• System control number: 299615
• Canceled/invalid system control number: sh99004600

040 ## - CATALOGING SOURCE

• Original cataloging agency: DLC
• Language of cataloging: eng
• Transcribing agency: DLC
• Modifying agency: DLC

053 #0 - LC CLASSIFICATION NUMBER

• Classification number element--single number or beginning number of span: Z711.45

150 ## - HEADING--TOPICAL TERM

• Topical term or geographic name entry element: Electronic reference services (Libraries)

450 ## - SEE FROM TRACING--TOPICAL TERM

• Topical term or geographic name entry element: E-mail reference services (Libraries)

450 ## - SEE FROM TRACING--TOPICAL TERM

• Topical term or geographic name entry element: Electronic mail reference services (Libraries)

450 ## - SEE FROM TRACING--TOPICAL TERM

• Topical term or geographic name entry element: Email reference services (Libraries)

450 ## - SEE FROM TRACING--TOPICAL TERM

• Topical term or geographic name entry element: Digital reference services (Libraries)

450 ## - SEE FROM TRACING--TOPICAL TERM

• Topical term or geographic name entry element: Virtual reference services (Libraries)

550 ## - SEE ALSO FROM TRACING--TOPICAL TERM

• Control subfield: g
• Topical term or geographic name entry element: Computer network resources

550 ## - SEE ALSO FROM TRACING--TOPICAL TERM

• Control subfield: g
• Topical term or geographic name entry element: Reference services (Libraries)

670 ## - SOURCE DATA FOUND

• Source citation: WWW through Alta Vista June 17, 1999
• Information found: ("electronic reference service," "digital reference service": sites where questions can be sent to library reference staff, who will provide answers; usually restricted to ready reference; also e-mail reference services, email reference services, electronic mail reference services)

670 ## - SOURCE DATA FOUND

• Source citation: Lipow, A. The virtual reference librarian's handbook, 2002:
• Information found: galley (live, interactive, remote service)