§In the previous example,
a date or title is difficult to locate in the NYPL Research
Libraries’ catalog
§Title is not available in
online NYPL Catalog
–18th Century date for Playing
Cards: Mechanics is mentioned in the Guide to the
Research Collections of the New York Public
Library (published 1975)
§How do we link to this type
of non-cataloged information from Digital Gallery metadata,
especially if it is not in a standard reference format?