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Cataloging
The large number of subfields defined for the 856 tag make it seem more
complicated than it is. Although there are many subfields available, only a few
are required to enable access.
Cataloging tips for the 856 tag Electronic Location and Access (R)
Essential components
Cataloging guidelines
Indicator 1
Access method
4
HTTP
To create an active link for this tag in the
OPACs, Cataloging (OPAC Display only), and
WebCollection Plus, set the first indicator to
4
.
Indicator 2
Relationship to source
0
Resource
1
Version of resource
2
Related to resource
If the main entry of the record
is
an electronic
resource (e.g., an eBook or Web site), and the
856 tag provides access to it, enter a
0
.
If the 856 tag is a link to an
electronic version
of
the physical item in the main entry, enter a
1
.
If the 856 tag is a link to
related
Web sites or
files, enter a
2
.
Subfields
_u Uniform Resource Locator (NR) Enter the complete URL, including the access
method (e.g., http, file, mailto). Unless you
also enter a subfield z, this subfield displays in
the OPACs, Cataloging (OPAC Display only),
and WebCollection Plus.
_z Public note (R)
Enter a userfriendly link that displays in the
OPACs, Cataloging (OPAC Display only), and
WebCollection Plus. If the 856 tag contains a
_z, only the contents of _z are displayed.
Otherwise, the URL in _u displays.
_3 Materials specified (NR)
If the electronic resource is a subset of, or an
addition to, the MARC record's main entry,
use this subfield to describe the materials in
the electronic resource.
Examples:
Table of contents
Part I
Note:
If a tag or subfield can occur more than once, it is marked (R) for repeatable. If a tag or
subfield indicates (NR), it can only occur once per record or tag, respectively.
Example:
A bibliographic record for
Moby Dick
has the following main entry:
245
10 _aMoby Dick, or, The whale /
_cHerman Melville ; illustrated by Rockwell Kent.
This record might
also
include an 856 tag for the electronic version of the book:
856
41 _uhttp://www.melville.org/download.htm
_zClick here to read the book!
An 856 tag for a Web site with related information:
856
42 _uhttp://www.robinsonresearch.com/literate/authors/Melville.htm
_zBiographical data on Herman Melville
An 856 tag for a local file containing images and facts on whaling:
856
42 _ufile://myserver/hypertext_files/whaling.htm
_zWhaling facts and images
Or an 856 tag for sending email messages:
856
42 _umailto:librarian@myschool.edu
_zSend your comments on this book to your librarian!
See also:
For more information on adding tags to MARC records, see page 266.
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