Jack van der Elsen asks:
>
> Can someone tell me the main differences between the two formats
> MARC21 and UNIMARC ?
>
The main difference is that no tow tags nor subfields are the same.
Otherwise, they are quite similar.
Come have a look at these listings of all the tags in both formats:
(US)MARC
http://www.biblio.tu-bs.de/allegro/formate/usmarc.htm
UNIMARC
http://www.biblio.tu-bs.de/allegro/formate/unimarc.htm
If you ask which of the many fields are used most often (some are used
almost never), look at the TOP33 of USMARC:
http://www.biblio.tu-bs.de/allegro/formate/formneu.htm#top33
Regards, B.E.
Bernhard Eversberg
Universitaetsbibliothek, Postf. 3329,
D-38023 Braunschweig, Germany
Tel. +49 531 391-5026 , -5011 , FAX -5836
e-mail [log in to unmask]
Bernhard Eversberg
Universitaetsbibliothek, Postf. 3329,
D-38023 Braunschweig, Germany
Tel. +49 531 391-5026 , -5011 , FAX -5836
e-mail [log in to unmask]
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