Inconsistent source indication

[lb42]

All but one title has a <bibl type="printSource"> providing a link to a Zenodo link to the (inaccessible) digital facsimile of the print source. For one title ROM009 this information is in a <bibl type='digitalSource'> instead.

[lb42]

The problem seems to be that the source used does not specify a date of publication, and cannot be documented as "printSource" with a date of 2013, which is presumably the date that the digital facs was created. But without access to that facsimile it's impossible to tell. It would be more consistent to change the @type value to printSource and omit the date element, or give it the value "unknown".