Greetings Colleagues,

A fellow NU cataloger has come across the following situation and we are stymied by how to proceed.

On the piece, the title is: [Prisciani] De accentibus 

So we have 245 10 �a [Prisciani] De accentibus

While our bib record is being cataloged using AACR2, we are contributing a RDA authority record.
100 0_ �a Priscian, �d fl. ca. 500-530. �t De accentibus. �l Italian
400 0_ �a Priscian, �d fl. ca. 500-530. �t [Prisciani] De accentibus

We have not been able to find any guidance in either AACR2 or RDA on how to transcribe the square brackets. In our minds, square brackets usually denote supplied information of some sort. We don't want others to think that we supplied something we did not. 

Thoughts and suggestions welcome!

Jennifer B. Young
Serials Catalog Librarian
Northwestern University Library
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