I've provisionally removed the fourth NAR example from 18.3.3. It shows a NAR that includes 410s representing valid earlier names, with a 667 note that they represent valid AACR2 headings. The record in the NAF has since been updated, with one of the headings now established and the other represented by a non-specific 510 (with no related NAR).
Is it still useful to include an example of this practice in module 18? (If so, I'll need another example.) Or is it preferable to leave this diminishing class of NARs to the NACO Manual, given that these records were created more than thirty years ago, at the time of a migration to an earlier code?
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