http://www.loc.gov/marc/bibliographic/
Provides access to both the full and concise versions of the MARC 21 Format for Bibliographic Data.
To learn the Marc tag, it is good to start with Tag 100:
Main Entry-Personal Name
to learn more about Tag 100, click the link, and have a look at the first indicator, e.g.,
| First Indicator | |||
|---|---|---|---|
| Type of personal name entry element 0 - Forename 1 - Surname 3 - Family name then try to understand some subfield codes, e.g.,
| |||
4 comments:
Dear Ms Dexterine Ho
Thank you for the post on Tag 100. Have a question regarding Tag 650:
For the first indicator, does (1) refer to Primary school level and (2) refer to Secondary school level?
Thank you for your attention.
Sincerely,
Benjamin Wong
Regarding Tag 650:
For the first indicator, (1) refer to Primary subject of the publication and (2) refer to Secondary subject of the same publication!
Read the posting:
http://dexterine.blogspot.sg/2016/07/marc-21-format-for-bibliographic-data_32.html
or visit:
http://www.loc.gov/marc/bibliographic/bd650.html
for more information.
Thank you for sending your question via comment page!
Dexterine Ho
Thank you for the clarification. However, as the OPAC record does not indicate if the subject is of primary or secondary importance, is it best to leave the first indicator blank?
Take for example:
There are three subjects, Leadership, Mathematics and Science, but which of them are Primary/Secondary?
You are right: the OPAC record does not indicate if the subject is of primary or secondary importance.
But it is good to the code first indicator, if your are able to.
If you are not sure, it is OK to leave it blank.
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