East Austin stories [videorecording]. (OCLC #515199419)
In RDA, we can supply the date of publication from any available source. I could not find a date of publication in any of the preferred sources (same source as title proper, or anywhere else in the resource) so emailed the contact person listed on the publisher’s website. He quickly wrote back and supplied me with the information and was delighted to hear that we were adding the video to our collection.
As the date of publication was supplied from a source outside of the resource, I indicated that with square brackets:
264 _1 ǂa [Austin, Texas] : ǂb EastAustinStories.org, ǂc