FAST uses the same subject tags as LCSH: 650, 651, 655, plus adds a new 
field for its time-based headings, 648 (which are subfield $y in LCSH 
fields). There was a discussion of FAST in MARC in:
   http://www.loc.gov/marc/marbi/2002/2002-13.html
Although that is primarily about the authority format, there are some 
bibliographic examples toward the end.

kc

On 11/23/12 5:07 AM, Arash.Joorabchi wrote:
> Given a collection of scientific documents annotated with FAST subject
> headings, I was wondering what MARC field should be used to represent
> FAST?
>
> DDC (MARC-082)
> LCC (MARC-050)
> LCSH (MARC-650)
> FAST ?
>
> Thanks,
> Arash

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Karen Coyle
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