OCLC Bib formats says to prefer a separate field for each unique term. The examples don’t cover your situation (with two terms not in any particular thesaurus) but since they specify “term” rather than vocabulary, I think OCLC is preferring
347 ## $bPDF
347 ## $bEPUB
rather than one 347 with two 347s.

Mike Monaco (he/him)
Coordinator, Cataloging Services
261B Bierce Library
The University of Akron
Akron, Ohio 44325-1712
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From: Program for Cooperative Cataloging <[log in to unmask]> On Behalf Of Ivan E Calimano
Sent: Wednesday, July 29, 2020 12:17 PM
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Subject: [PCCLIST] Use of 347 $b

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I have now a question about the use of $b when I have 2 encoding formats for the same bib record.

So far, with no examples in the bib formats (LC or OCLC), I've been using two 347, one for each format that I have. Then I realized that $b is repeatable. So, what it is "correct" then?

347 ## $bPDF
347 ## $bEPUB


347 ## $bPDF$bEPUB

Thanks for the guidance.

Keep safe



Iván E Calimano, PhD
Head of Bibliographic Services
Digitalia Inc
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